ORA-600 各个参数含义说明

谁借莪１个温暖的怀抱￠ 2022-05-28 05:38 291阅读 0赞

## 一. ORA-600 概述 ##

ORA-600 是一个非常头疼的一个错误。比如：

ORA-00600:internal error code, arguments: \[4194\], \[43\], \[46\], \[\], \[\], \[\], \[\], \[\]

这个就是undo 损坏出现故障的一个提示信息。关于这种情况的解决方法，参考blog：

[Current online Redo 和 Undo 损坏的处理方法][Current online Redo _ Undo]

[http://blog.csdn.net/tianlesoftware/article/details/6261475][Current online Redo _ Undo]

Errorsof the form ORA-600 are called internal errors. This section clarifies themisunderstanding of ORA-600s being synonymous with corruption.

An ORA-600 usually has up to five arguments associated withit which gives [Oracle][] support and developers more information about theerror. The first argument of an ORA-600 indicates wherein the source code an unexpected condition was encountered. Theremaining arguments give information about the variables and data beingexamined. An analyst can then determine if the error was the result of sometype of corruption.

Oracle server source code is subdivided into about 13different layers or modules,each of which is assigned a range of ORA-600 errors. Of these, only some rangespertain directly to the types of corruption described in this paper.

ORA-600通常有5个参数，第一个参数表示的是异常的source code位置。 Oracle Server source code 大致分为了13个不同的layers 和 modules。 关于第一参数的具体说明，在MOS 的文档：\[ID175982.1\]，有详细的说明。

## 二. 第一个参数说明 ##

在\[ID 175982.1\]文档上的定义分成了2种：

（1）the first parameter is a number which reflects the source componentor layer the error is connected with; or

（2）the first parameter is a mnemonic which indicates the source modulewhere the error originated. This type of internal error is now used inpreference to an internal error number.

### 2.1 Internal Errors Categorised by numberrange（数字类型） ###

Thefollowing table provides an indication of internal error codes used in theOracle server. Thus, if ora-600\[X\] is encountered, it is possible to glean somehigh level background information : the error in generated in the Y layer whichindicates that there may be a problem with Z.

<table style="color:#555555;font-size:15px;font-family:Tahoma, Helvetica, Arial, '宋体', sans-serif;width:738px;"> 
 <tbody> 
 <tr> 
 <th align="left">Ora-600 Base</th> 
 <th align="left">Functionality</th> 
 <th align="left">Description</th> 
 </tr> 
 <tr> 
 <td align="left">1</td> 
 <td align="left">Service Layer</td> 
 <td align="left">The service layer has within it a variety of service related components which are associated with in memory related activities in the SGA such as, for example : the management of Enqueues, System Parameters, System state objects (these objects track the use of structures in the SGA by Oracle server processes), etc.. In the main, this layer provides support to allow process communication and provides support for locking and the management of structures to support multiple user processes connecting and interacting within the SGA.&nbsp; Note : vos&nbsp; – Virtual Operating System provides features to support the functionality above.&nbsp; As the name suggests it provides base functionality in much the same way as is provided by an Operating System.&nbsp; &nbsp; 
 <table style="width:514px;"> 
 <tbody> 
 <tr> 
 <th align="left">Ora-600 Base</th> 
 <th align="left">Functionality</th> 
 <th align="left">Description</th> 
 </tr> 
 <tr> 
 <td>1</td> 
 <td>vos</td> 
 <td>Component notifier&nbsp;</td> 
 </tr> 
 <tr> 
 <td>100</td> 
 <td>vos</td> 
 <td>Debug</td> 
 </tr> 
 <tr> 
 <td>300</td> 
 <td>vos</td> 
 <td>Error</td> 
 </tr> 
 <tr> 
 <td>500</td> 
 <td>vos</td> 
 <td>Lock</td> 
 </tr> 
 <tr> 
 <td>700</td> 
 <td>vos</td> 
 <td>Memory</td> 
 </tr> 
 <tr> 
 <td>900</td> 
 <td>vos</td> 
 <td>System Parameters&nbsp;</td> 
 </tr> 
 <tr> 
 <td>1100</td> 
 <td>vos</td> 
 <td>System State object&nbsp;</td> 
 </tr> 
 <tr> 
 <td>1110</td> 
 <td>vos</td> 
 <td>Generic Linked List management&nbsp;</td> 
 </tr> 
 <tr> 
 <td>1140</td> 
 <td>vos</td> 
 <td>Enqueue</td> 
 </tr> 
 <tr> 
 <td>1180</td> 
 <td>vos</td> 
 <td>Instance Locks&nbsp;</td> 
 </tr> 
 <tr> 
 <td>1200</td> 
 <td>vos</td> 
 <td>User State object&nbsp;</td> 
 </tr> 
 <tr> 
 <td>1400</td> 
 <td>vos</td> 
 <td>Async Msgs&nbsp;</td> 
 </tr> 
 <tr> 
 <td>1700</td> 
 <td>vos</td> 
 <td>license Key&nbsp;</td> 
 </tr> 
 <tr> 
 <td>1800</td> 
 <td>vos</td> 
 <td>Instance Registration&nbsp;</td> 
 </tr> 
 <tr> 
 <td>1850</td> 
 <td>vos</td> 
 <td>I/O Services components</td> 
 </tr> 
 </tbody> 
 </table></td> 
 </tr> 
 <tr> 
 <td align="left">2000</td> 
 <td align="left">Cache Layer</td> 
 <td align="left">Where errors are generated in this area, it is advisable to check whether the error is repeatable and whether the error is perhaps associated with recovery or undo type operations; where this is the case and the error is repeatable, this may suggest some kind of hardware or physical issue with a data file, control file or log file. The Cache layer is responsible for making the changes to the underlying files and well as managing the related memory structures in the SGA.&nbsp; Note :&nbsp;rcv&nbsp;indicates recovery. It is important to remember that the Oracle cache layer is effectively going through the same code paths as used by the recovery mechanism.&nbsp; &nbsp; 
 <table style="width:514px;"> 
 <tbody> 
 <tr> 
 <th align="left">Ora-600 Base</th> 
 <th align="left">Functionality</th> 
 <th align="left">Description</th> 
 </tr> 
 <tr> 
 <td>2000</td> 
 <td>server/rcv</td> 
 <td>Cache Op</td> 
 </tr> 
 <tr> 
 <td>2100</td> 
 <td>server/rcv</td> 
 <td>Control File mgmt&nbsp;</td> 
 </tr> 
 <tr> 
 <td>2200</td> 
 <td>server/rcv</td> 
 <td>Misc (SCN etc.)&nbsp;</td> 
 </tr> 
 <tr> 
 <td>2400</td> 
 <td>server/rcv</td> 
 <td>Buffer Instance Hash Table&nbsp;</td> 
 </tr> 
 <tr> 
 <td>2600</td> 
 <td>server/rcv</td> 
 <td>Redo file component&nbsp;</td> 
 </tr> 
 <tr> 
 <td>2800</td> 
 <td>server/rcv</td> 
 <td>Db file&nbsp;</td> 
 </tr> 
 <tr> 
 <td>3000</td> 
 <td>server/rcv</td> 
 <td>Redo Application&nbsp;</td> 
 </tr> 
 <tr> 
 <td>3200</td> 
 <td>server/cache</td> 
 <td>Buffer manager&nbsp;</td> 
 </tr> 
 <tr> 
 <td>3400</td> 
 <td>server/rcv</td> 
 <td>Archival &amp; media recovery component&nbsp;</td> 
 </tr> 
 <tr> 
 <td>3600</td> 
 <td>server/rcv</td> 
 <td>recovery component</td> 
 </tr> 
 <tr> 
 <td>3700</td> 
 <td>server/rcv</td> 
 <td>Thread component&nbsp;</td> 
 </tr> 
 <tr> 
 <td>3800</td> 
 <td>server/rcv</td> 
 <td>Compatibility segment</td> 
 </tr> 
 </tbody> 
 </table>It is important&nbsp; to consider when the error occurred and the context in which the error was generated. If the error does not reproduce, it may be an in memory issue.&nbsp; &nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">4000</td> 
 <td align="left">Transaction Layer</td> 
 <td align="left">Primarily the transaction layer is involved with maintaining structures associated with the management of transactions.&nbsp; As with the cache layer , problems encountered in this layer may indicate some kind of issue at a physical level. Thus it is important to try and repeat the same steps to see if the problem recurs.&nbsp;&nbsp; &nbsp; 
 <table style="width:514px;"> 
 <tbody> 
 <tr> 
 <th align="left">Ora-600 Base</th> 
 <th align="left">Functionality</th> 
 <th align="left">Description</th> 
 </tr> 
 <tr> 
 <td>4000</td> 
 <td>server/txn</td> 
 <td>Transaction Undo&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4100</td> 
 <td>server/txn</td> 
 <td>Transaction Undo&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4210</td> 
 <td>server/txn</td> 
 <td>Transaction Parallel&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4250</td> 
 <td>server/txn</td> 
 <td>Transaction List&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4300</td> 
 <td>space/spcmgmt</td> 
 <td>Transaction Segment&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4400</td> 
 <td>txn/lcltx</td> 
 <td>Transaction Control&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4450</td> 
 <td>txn/lcltx</td> 
 <td>distributed transaction control</td> 
 </tr> 
 <tr> 
 <td>4500</td> 
 <td>txn/lcltx</td> 
 <td>Transaction Block&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4600</td> 
 <td>space/spcmgmt</td> 
 <td>Transaction Table&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4800</td> 
 <td>dict/rowcache</td> 
 <td>Query Row Cache&nbsp;</td> 
 </tr> 
 <tr> 
 <td>4900</td> 
 <td>space/spcmgmt</td> 
 <td>Transaction Monitor&nbsp;</td> 
 </tr> 
 <tr> 
 <td>5000</td> 
 <td>space/spcmgmt</td> 
 <td>Transaction Extent&nbsp;</td> 
 </tr> 
 </tbody> 
 </table>It is important to try and determine what the object involved in any reproducible problem is. Then use the analyze command. For more information, please refer to the analyze command as detailed in the context of&nbsp;&nbsp;<a href="http://www.ningoo.net/metalink/plsql/showdoc?db=NOT&amp;id=28814.1&amp;blackframe=1" style="text-decoration:none;color:#0082FF;border:none;padding:1px;" rel="nofollow">Note 28814.1</a>; in addition, it may be worth using the dbverify as discussed in&nbsp;<a href="http://www.ningoo.net/metalink/plsql/showdoc?db=NOT&amp;id=35512.1&amp;blackframe=1" style="text-decoration:none;color:#0082FF;border:none;padding:1px;" rel="nofollow">Note 35512.1</a>.&nbsp; &nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">6000</td> 
 <td align="left">Data Layer</td> 
 <td align="left">The data layer is responsible for maintaining and managing the data in the database tables and indexes. Issues in this area may indicate some kind of physical issue at the object level and therefore, it is important to try and isolate the object and then perform an anlayze on the object to validate its structure.&nbsp;&nbsp; &nbsp; 
 <table style="width:514px;"> 
 <tbody> 
 <tr> 
 <th align="left">Ora-600 Base</th> 
 <th align="left">Functionality</th> 
 <th align="left">Description</th> 
 </tr> 
 <tr> 
 <td>6000</td> 
 <td>ram/data&nbsp; ram/analyze&nbsp; ram/index</td> 
 <td>data, analyze command and index related activity</td> 
 </tr> 
 <tr> 
 <td>7000</td> 
 <td>ram/object</td> 
 <td>lob related errors</td> 
 </tr> 
 <tr> 
 <td>8000</td> 
 <td>ram/data</td> 
 <td>general data access</td> 
 </tr> 
 <tr> 
 <td>8110</td> 
 <td>ram/index</td> 
 <td>index related</td> 
 </tr> 
 <tr> 
 <td>8150</td> 
 <td>ram/object</td> 
 <td>general data access</td> 
 </tr> 
 </tbody> 
 </table>Again, it is important to try and determine what the object involved in any reproducible problem is. Then use the analyze command. For more information, please refer to the analyze command as detailed in the context of&nbsp;&nbsp;<a href="http://www.ningoo.net/metalink/plsql/showdoc?db=NOT&amp;id=28814.1&amp;blackframe=1" style="text-decoration:none;color:#0082FF;border:none;padding:1px;" rel="nofollow">Note 28814.1</a>; in addition, it may be worth using the dbverify as discussed in&nbsp;<a href="http://www.ningoo.net/metalink/plsql/showdoc?db=NOT&amp;id=35512.1&amp;blackframe=1" style="text-decoration:none;color:#0082FF;border:none;padding:1px;" rel="nofollow">Note 35512.1</a>.&nbsp; &nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">12000</td> 
 <td align="left">User/Oracle Interface &amp; SQL Layer Components</td> 
 <td align="left">This layer governs the user interface with the Oracle server. Problems generated by this layer usually indicate : some kind of presentation or format error in the data received by the server, i.e. the client may have sent incomplete information; or there is some kind of issue which indicates that the data is received out of sequence&nbsp; &nbsp; 
 <table style="width:514px;"> 
 <tbody> 
 <tr> 
 <th align="left">Ora-600 Base</th> 
 <th align="left">Functionality</th> 
 <th align="left">Description</th> 
 </tr> 
 <tr> 
 <td>12200</td> 
 <td>progint/kpo&nbsp; progint/opi</td> 
 <td>lob related&nbsp; errors at interface level on server side, xa , etc.</td> 
 </tr> 
 <tr> 
 <td>12300</td> 
 <td>progint/if</td> 
 <td>OCI interface to coordinating global transactions&nbsp;</td> 
 </tr> 
 <tr> 
 <td>12400</td> 
 <td>sqlexec/rowsrc</td> 
 <td>table row source access</td> 
 </tr> 
 <tr> 
 <td>12600</td> 
 <td>space/spcmgmt</td> 
 <td>operations associated with tablespace : alter / create / drop operations ; operations associated with create table / cluster</td> 
 </tr> 
 <tr> 
 <td>12700</td> 
 <td>sqlexec/rowsrc&nbsp;</td> 
 <td>bad rowid</td> 
 </tr> 
 <tr> 
 <td>13000</td> 
 <td>dict/if</td> 
 <td>dictionary access routines associated with kernel compilation</td> 
 </tr> 
 <tr> 
 <td>13080</td> 
 <td>ram/index</td> 
 <td>kernel Index creation</td> 
 </tr> 
 <tr> 
 <td>13080</td> 
 <td>sqllang/integ</td> 
 <td>constraint mechanism</td> 
 </tr> 
 <tr> 
 <td>13100</td> 
 <td>progint/opi</td> 
 <td>archival and Media Recovery component</td> 
 </tr> 
 <tr> 
 <td>13200</td> 
 <td>dict/sqlddl</td> 
 <td>alter table mechanism</td> 
 </tr> 
 <tr> 
 <td>13250</td> 
 <td>security/audit</td> 
 <td>audit statement processing</td> 
 </tr> 
 <tr> 
 <td>13300</td> 
 <td>objsupp/objdata</td> 
 <td>support for handling of object generation and object access</td> 
 </tr> 
 <tr> 
 <td>14000</td> 
 <td>dict/sqlddl</td> 
 <td>sequence generation</td> 
 </tr> 
 <tr> 
 <td>15000</td> 
 <td>progint/kpo</td> 
 <td>logon to Oracle</td> 
 </tr> 
 <tr> 
 <td>16000</td> 
 <td>tools/sqlldr</td> 
 <td>sql loader related</td> 
 </tr> 
 </tbody> 
 </table>You should try and repeat the issue and with the use of sql trace , try and isolate where exactly the issue may be occurring within the application.</td> 
 </tr> 
 <tr> 
 <td align="left">14000</td> 
 <td align="left">System Dependent Component internal error values</td> 
 <td align="left">This layer manages interaction with the OS. Effectively it acts as the glue which allows the Oracle server to interact with the OS. The types of operation which this layer manages are indicated as follows.&nbsp; &nbsp; 
 <table style="width:514px;"> 
 <tbody> 
 <tr> 
 <th align="left">Ora-600 Base</th> 
 <th align="left">Functionality</th> 
 <th align="left">Description</th> 
 </tr> 
 <tr> 
 <td>14000</td> 
 <td>osds</td> 
 <td>File access</td> 
 </tr> 
 <tr> 
 <td>14100</td> 
 <td>osds</td> 
 <td>Concurrency management;&nbsp;</td> 
 </tr> 
 <tr> 
 <td>14200</td> 
 <td>osds</td> 
 <td>Process management;</td> 
 </tr> 
 <tr> 
 <td>14300</td> 
 <td>osds</td> 
 <td>Exception-handler or signal handler management</td> 
 </tr> 
 <tr> 
 <td>14500</td> 
 <td>osds</td> 
 <td>Memory allocation</td> 
 </tr> 
 </tbody> 
 </table></td> 
 </tr> 
 <tr> 
 <td>15000</td> 
 <td>security/dac,&nbsp; security/logon&nbsp; security/ldap</td> 
 <td>local user access validation; challenge / response activity for remote access validation; auditing operation; any activities associated with granting and revoking of privileges; validation of password with external password file</td> 
 </tr> 
 <tr> 
 <td>15100</td> 
 <td>dict/sqlddl</td> 
 <td>this component manages operations associated with creating, compiling (altering), renaming, invalidating, and dropping&nbsp; procedures, functions, and packages.</td> 
 </tr> 
 <tr> 
 <td>15160</td> 
 <td>optim/cbo</td> 
 <td>cost based optimizer layer is used to determine optimal path to the data based on statistical information available on the relevant tables and indexes.</td> 
 </tr> 
 <tr> 
 <td>15190</td> 
 <td>optim/cbo</td> 
 <td>cost based optimizer layer. Used in the generation of a new index to determine how the index should be created. Should it be constructed from the table data or from another index.</td> 
 </tr> 
 <tr> 
 <td>15200</td> 
 <td>dict/shrdcurs</td> 
 <td>used to in creating sharable context area associated with shared cursors</td> 
 </tr> 
 <tr> 
 <td>15230</td> 
 <td>dict/sqlddl</td> 
 <td>manages the compilation of triggers</td> 
 </tr> 
 <tr> 
 <td>15260</td> 
 <td>dict/dictlkup&nbsp; dict/libcache</td> 
 <td>dictionary lookup and library cache access</td> 
 </tr> 
 <tr> 
 <td>15400</td> 
 <td>server/drv</td> 
 <td>manages alter system and alter session operations</td> 
 </tr> 
 <tr> 
 <td>15410</td> 
 <td>progint/if</td> 
 <td>manages compilation of pl/sql packages and procedures</td> 
 </tr> 
 <tr> 
 <td>15500</td> 
 <td>dict/dictlkup</td> 
 <td>performs dictionary lookup to ensure semantics are correct</td> 
 </tr> 
 <tr> 
 <td>15550</td> 
 <td>sqlexec/execsvc sqlexec/rowsrc</td> 
 <td>hash join execution management;&nbsp;&nbsp; parallel row source management</td> 
 </tr> 
 <tr> 
 <td>15600</td> 
 <td>sqlexec/pq</td> 
 <td>component provides support for Parallel Query operation</td> 
 </tr> 
 <tr> 
 <td>15620</td> 
 <td>repl/snapshots</td> 
 <td>manages the creation of snapshot or materialized views as well as related snapshot / MV operations</td> 
 </tr> 
 <tr> 
 <td>15640</td> 
 <td>repl/defrdrpc</td> 
 <td>layer containing various functions for examining the deferred transaction queue and retrieving information</td> 
 </tr> 
 <tr> 
 <td>15660</td> 
 <td>jobqs/jobq</td> 
 <td>manages the operation of the Job queue background processes</td> 
 </tr> 
 <tr> 
 <td>15670</td> 
 <td>sqlexec/pq</td> 
 <td>component provides support for Parallel Query operation</td> 
 </tr> 
 <tr> 
 <td>15700</td> 
 <td>sqlexec/pq</td> 
 <td>component provides support for Parallel Query operation; specifically mechanism for starting up and shutting down query slaves</td> 
 </tr> 
 <tr> 
 <td>15800</td> 
 <td>sqlexec/pq</td> 
 <td>component provides support for Parallel Query operation</td> 
 </tr> 
 <tr> 
 <td>15810</td> 
 <td>sqlexec/pq</td> 
 <td>component provides support for Parallel Query operation; specifically functions for creating mechanisms through which Query co-ordinator can communicate with PQ slaves;</td> 
 </tr> 
 <tr> 
 <td>15820</td> 
 <td>sqlexec/pq</td> 
 <td>component provides support for Parallel Query operation</td> 
 </tr> 
 <tr> 
 <td>15850</td> 
 <td>sqlexec/execsvc</td> 
 <td>component provides support for the execution of SQL statements</td> 
 </tr> 
 <tr> 
 <td>15860</td> 
 <td>sqlexec/pq</td> 
 <td>component provides support for Parallel Query operation</td> 
 </tr> 
 <tr> 
 <td>16000</td> 
 <td>loader</td> 
 <td>sql Loader direct load operation;</td> 
 </tr> 
 <tr> 
 <td>16150</td> 
 <td>loader</td> 
 <td>this layer is used for ‘C’ level call outs to direct loader operation;</td> 
 </tr> 
 <tr> 
 <td>16200</td> 
 <td>dict/libcache</td> 
 <td>this is part of library Cache operation. Amongst other things it manages the dependency of SQL objects and tracks who is permitted to access these objects;</td> 
 </tr> 
 <tr> 
 <td>16230</td> 
 <td>dict/libcache</td> 
 <td>this component is responsible for managing access to remote objects as part of library Cache operation;</td> 
 </tr> 
 <tr> 
 <td>16300</td> 
 <td>mts/mts</td> 
 <td>this component relates to MTS (Multi Threaded Server) operation</td> 
 </tr> 
 <tr> 
 <td>16400</td> 
 <td>dict/sqlddl</td> 
 <td>this layer contains functionality which allows tables to be loaded / truncated and their definitions to be modified. This is part of dictionary operation;</td> 
 </tr> 
 <tr> 
 <td>16450</td> 
 <td>dict/libcache</td> 
 <td>this layer layer provides support for multi-instance access to the library cache; this functionality is applicable therefore to OPS environments;</td> 
 </tr> 
 <tr> 
 <td>16500</td> 
 <td>dict/rowcache</td> 
 <td>this layer provides support to load / cache Oracle’s dictionary in memory in the library cache;</td> 
 </tr> 
 <tr> 
 <td>16550</td> 
 <td>sqlexec/fixedtab</td> 
 <td>this component maps data structures maintained in the Oracle code to fixed tables such that they can be queried using the SQL layer;</td> 
 </tr> 
 <tr> 
 <td>16600</td> 
 <td>dict/libcache</td> 
 <td>this layer performs management of data structures within the library cache;</td> 
 </tr> 
 <tr> 
 <td>16651</td> 
 <td>dict/libcache</td> 
 <td>this layer performs management of dictionary related information within library Cache;</td> 
 </tr> 
 <tr> 
 <td>16701</td> 
 <td>dict/libcache</td> 
 <td>this layer provides library Cache support to support database creation and forms part of the bootstrap process;</td> 
 </tr> 
 <tr> 
 <td>17000</td> 
 <td>dict/libcache</td> 
 <td>this is the main library Cache manager. This Layer maintains the in memory representation of cached sql statements together will all the necessary support that this demands;</td> 
 </tr> 
 <tr> 
 <td>17090</td> 
 <td>generic/vos</td> 
 <td>this layer implementations error management operations: signalling errors, catching&nbsp; errors, recovering from errors, setting error frames, etc.;</td> 
 </tr> 
 <tr> 
 <td>17100</td> 
 <td>generic/vos</td> 
 <td>Heap manager. The Heap manager manages the storage of internal data in an orderly and consistent manner. There can be many heaps serving various purposes; and heaps within heaps. Common examples are the SGA heap, UGA heap and the PGA heap. Within a Heap there are consistency markers which aim to ensure that the Heap is always in a consistent state. Heaps are use extensively and are in memory structures – not on disk.&nbsp;</td> 
 </tr> 
 <tr> 
 <td>17200</td> 
 <td>dict/libcache</td> 
 <td>this component deals with loading remote library objects into the local library cache with information from the remote database.</td> 
 </tr> 
 <tr> 
 <td>17250</td> 
 <td>dict/libcache</td> 
 <td>more library cache errors ; functionality for handling pipe operation associated with dbms_pipe</td> 
 </tr> 
 <tr> 
 <td>17270</td> 
 <td>dict/instmgmt</td> 
 <td>this component manages instantiations of procedures, functions, packages, and cursors in a session. This provides a means to keep track of what has been loaded in the event of process death;&nbsp;</td> 
 </tr> 
 <tr> 
 <td>17300</td> 
 <td>generic/vos</td> 
 <td>manages certain types of memory allocation structure.&nbsp; This functionality is an extension of the Heap manager.</td> 
 </tr> 
 <tr> 
 <td>17500</td> 
 <td>generic/vos</td> 
 <td>relates to various I/O operations. These relate to async i/o operation,&nbsp; direct i/o operation and the management of writing buffers from the buffer cache by potentially a number of database writer processes;</td> 
 </tr> 
 <tr> 
 <td>17625</td> 
 <td>dict/libcache</td> 
 <td>additional library Cache supporting functions</td> 
 </tr> 
 <tr> 
 <td>17990</td> 
 <td>plsql</td> 
 <td>plsql ‘standard’ package related issues</td> 
 </tr> 
 <tr> 
 <td>18000</td> 
 <td>txn/lcltx</td> 
 <td>transaction and savepoint management operations&nbsp;</td> 
 </tr> 
 <tr> 
 <td>19000</td> 
 <td>optim/cbo</td> 
 <td>cost based optimizer related operations</td> 
 </tr> 
 <tr> 
 <td>20000</td> 
 <td>ram/index</td> 
 <td>bitmap index and index related errors.</td> 
 </tr> 
 <tr> 
 <td>20400</td> 
 <td>ram/partnmap</td> 
 <td>operations on partition related objects</td> 
 </tr> 
 <tr> 
 <td>20500</td> 
 <td>server/rcv</td> 
 <td>server recovery related operation</td> 
 </tr> 
 <tr> 
 <td>21000</td> 
 <td>repl/defrdrpc,&nbsp;&nbsp; repl/snapshot,&nbsp; repl/trigger</td> 
 <td>replication related features</td> 
 </tr> 
 <tr> 
 <td>23000</td> 
 <td>oltp/qs</td> 
 <td>AQ related errors.</td> 
 </tr> 
 <tr> 
 <td>24000</td> 
 <td>dict/libcache</td> 
 <td>operations associated with managing stored outlines</td> 
 </tr> 
 <tr> 
 <td>25000</td> 
 <td>server/rcv</td> 
 <td>tablespace management operations</td> 
 </tr> 
 </tbody> 
</table>

### 2.2 Internal Errors Categorised by mnemonic（字符串类型） ###

Thefollowing table details mnemonics error stems which are possible. If you haveencountered : ora-600\[kkjsrj:1\] for example, you should look down the ErrorMnemonic column (errors in alphabetical order) until you find the matchingstem. In this case, kkj indicates that something unexpected has occurred in jobqueue operation.

<table style="color:#555555;font-size:15px;font-family:Tahoma, Helvetica, Arial, '宋体', sans-serif;width:738px;"> 
 <tbody> 
 <tr> 
 <th align="left">Error Mnemonic(s)</th> 
 <th align="left">Functionality</th> 
 <th align="left">Description</th> 
 </tr> 
 <tr> 
 <td align="left">ain ainp&nbsp;</td> 
 <td>ram/index</td> 
 <td>ain – alter index; ainp -&nbsp; alter index partition management operation</td> 
 </tr> 
 <tr> 
 <td align="left">apacb&nbsp;</td> 
 <td>optim/rbo</td> 
 <td>used by optimizer in connect by processing</td> 
 </tr> 
 <tr> 
 <td align="left">atb atbi atbo ctc ctci cvw&nbsp;</td> 
 <td>dict/sqlddl</td> 
 <td>alter table , create table (IOT) or cluster operations as well as create view related operations (with constraint handling functionality)</td> 
 </tr> 
 <tr> 
 <td align="left">dbsdrv</td> 
 <td>sqllang/parse</td> 
 <td>alter / create database operation</td> 
 </tr> 
 <tr> 
 <td align="left">ddfnet&nbsp;</td> 
 <td>progint/distrib</td> 
 <td>various distributed operations on remote dictionary</td> 
 </tr> 
 <tr> 
 <td align="left">delexe&nbsp;</td> 
 <td>sqlexec/dmldrv</td> 
 <td>manages the delete statement operation</td> 
 </tr> 
 <tr> 
 <td align="left">dix&nbsp;</td> 
 <td>ram/index</td> 
 <td>manages drop index or validate index operation&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">dtb&nbsp;</td> 
 <td>dict/sqlddl</td> 
 <td>manages drop table operation</td> 
 </tr> 
 <tr> 
 <td align="left">evaa2g evah2p evaa2g&nbsp;</td> 
 <td>dbproc/sqlfunc</td> 
 <td>various functions involves in evaluating operand outcomes such as : addition , average, OR operator, bites AND , bites OR, concatenation, as well as Oracle related functions : count(), dump() , etc. The list is extensive.</td> 
 </tr> 
 <tr> 
 <td align="left">expcmo expgon&nbsp;</td> 
 <td>dbproc/expreval</td> 
 <td>handles expression evaluation with respect to two operands being equivalent</td> 
 </tr> 
 <tr> 
 <td align="left">gra&nbsp;</td> 
 <td>security/dac</td> 
 <td>manages the granting and revoking of privilege rights to a user</td> 
 </tr> 
 <tr> 
 <td align="left">gslcsq&nbsp;</td> 
 <td>plsldap</td> 
 <td>support for operations with an LDAP server</td> 
 </tr> 
 <tr> 
 <td align="left">insexe&nbsp;</td> 
 <td>sqlexec/dmldrv</td> 
 <td>handles the insert statement operation</td> 
 </tr> 
 <tr> 
 <td align="left">jox&nbsp;</td> 
 <td>progint/opi</td> 
 <td>functionality associated with the Java compiler and with the Java runtime environment within the Server</td> 
 </tr> 
 <tr> 
 <td align="left">k2c k2d&nbsp;</td> 
 <td>progint/distrib</td> 
 <td>support for database to database operation in distributed environements as well as providing, with respect to the 2-phase commit protocol, a globally unique Database id</td> 
 </tr> 
 <tr> 
 <td align="left">k2g k2l</td> 
 <td>txn/disttx</td> 
 <td>support for the 2 phase commit protocol protocol and the coordination of the various states in managing the distributed transaction</td> 
 </tr> 
 <tr> 
 <td align="left">k2r k2s k2sp&nbsp;</td> 
 <td>progint/distrib</td> 
 <td>k2r – user interface for managing distributed transactions and combining distributed results ; k2s – handles logging on, starting a transaction, ending a transaction and recovering a transaction; k2sp – management of savepoints in a distributed environment.</td> 
 </tr> 
 <tr> 
 <td align="left">k2v&nbsp;</td> 
 <td>txn/disttx</td> 
 <td>handles distributed recovery operation</td> 
 </tr> 
 <tr> 
 <td align="left">kad&nbsp;</td> 
 <td>cartserv/picklercs</td> 
 <td>handles OCIAnyData implementation&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kau&nbsp;</td> 
 <td>ram/data</td> 
 <td>manages the modification of indexes for inserts, updates and delete operations for IOTs as well as modification of indexes for IOTs</td> 
 </tr> 
 <tr> 
 <td align="left">kcb kcbb kcbk kcbl kcbs kcbt kcbw kcbz&nbsp;</td> 
 <td>cache</td> 
 <td>manages Oracle’s buffer cache operation as well as operations used by capabilities such as direct load, has clusters , etc.</td> 
 </tr> 
 <tr> 
 <td align="left">kcc kcf&nbsp;</td> 
 <td>rcv</td> 
 <td>manages and coordinates operations on the control file(s)</td> 
 </tr> 
 <tr> 
 <td align="left">kcit&nbsp;</td> 
 <td>context/trigger</td> 
 <td>internal trigger functionality&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kck&nbsp;</td> 
 <td>rcv</td> 
 <td>compatibility related checks associated with the compatible parameter</td> 
 </tr> 
 <tr> 
 <td align="left">kcl&nbsp;</td> 
 <td>cache</td> 
 <td>background lck process which manages locking in a RAC or parallel server multiple instance environment</td> 
 </tr> 
 <tr> 
 <td align="left">kco kcq kcra kcrf kcrfr kcrfw kcrp kcrr kcs kct kcv&nbsp;</td> 
 <td>rcv</td> 
 <td>various buffer cache operation such as quiesce operation , managing fast start IO target, parallel recovery operation , etc.&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kd&nbsp;</td> 
 <td>ram/data</td> 
 <td>support for row level dependency checking and some log miner operations</td> 
 </tr> 
 <tr> 
 <td align="left">kda&nbsp;</td> 
 <td>ram/analyze</td> 
 <td>manages the analyze command and collection of statistics</td> 
 </tr> 
 <tr> 
 <td align="left">kdbl kdc kdd&nbsp;</td> 
 <td>ram/data</td> 
 <td>support for direct load operation, cluster space management and deleting rows</td> 
 </tr> 
 <tr> 
 <td align="left">kdg&nbsp;</td> 
 <td>ram/analyze</td> 
 <td>gathers information about the underlying data and is used by the analyze command</td> 
 </tr> 
 <tr> 
 <td align="left">kdi kdibc3 kdibco kdibh kdibl kdibo kdibq kdibr kdic kdici kdii kdil kdir kdis kdiss kdit kdk&nbsp;</td> 
 <td>ram/index</td> 
 <td>support of the creation of indexes on tables an IOTs and index look up&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kdl kdlt&nbsp;</td> 
 <td>ram/object</td> 
 <td>lob and temporary lob management</td> 
 </tr> 
 <tr> 
 <td align="left">kdo&nbsp;</td> 
 <td>ram/data</td> 
 <td>operations on data such as inserting a row piece or deleting a row piece&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kdrp&nbsp;</td> 
 <td>ram/analyze</td> 
 <td>underlying support for operations provided by the dbms_repair package</td> 
 </tr> 
 <tr> 
 <td align="left">kds kdt kdu&nbsp;</td> 
 <td>ram/data</td> 
 <td>operations on data such as retrieving a row and updating existing row data</td> 
 </tr> 
 <tr> 
 <td align="left">kdv kdx&nbsp;</td> 
 <td>ram/index</td> 
 <td>functionality for dumping index and managing index blocks</td> 
 </tr> 
 <tr> 
 <td align="left">kfc kfd kfg &nbsp;</td> 
 <td>asm</td> 
 <td>support for ASM file and disk operations</td> 
 </tr> 
 <tr> 
 <td align="left">kfh kfp kft&nbsp;</td> 
 <td>rcv</td> 
 <td>support for writing to file header and transportable tablespace operations</td> 
 </tr> 
 <tr> 
 <td align="left">kgaj kgam kgan kgas kgat kgav kgaz&nbsp;</td> 
 <td>argusdbg/argusdbg</td> 
 <td>support for Java Debug Wire Protocol (JDWP) and debugging facilites</td> 
 </tr> 
 <tr> 
 <td align="left">kgbt kgg kgh kghs kghx kgkp</td> 
 <td>vos</td> 
 <td>kgbt – support for BTree operations; kgg – generic lists processing; kgh – Heap Manager : managing the internal structures withing the SGA / UGA / PGA and ensures their integrity; kghs – Heap manager with Stream support; kghx – fixed sized shared memory manager; kgkp – generic services scheduling policies</td> 
 </tr> 
 <tr> 
 <td align="left">kgl kgl2 kgl3 kgla kglp kglr kgls&nbsp;</td> 
 <td>dict/libcache</td> 
 <td>generic library cache operation&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kgm kgmt&nbsp;</td> 
 <td>ilms</td> 
 <td>support for inter language method services – or calling one language from another</td> 
 </tr> 
 <tr> 
 <td align="left">kgrq kgsk kgski kgsn kgss&nbsp;</td> 
 <td>vos</td> 
 <td>support for priority queue and scheduling; capabilities for Numa support;&nbsp; Service State object manager</td> 
 </tr> 
 <tr> 
 <td align="left">kgupa kgupb kgupd0 kgupf kgupg kgupi kgupl kgupm kgupp kgupt kgupx kguq2 kguu&nbsp;</td> 
 <td>vos</td> 
 <td>Service related activities activities associated with for Process monitor (PMON); spawning or creating of background processes; debugging; managing process address space;&nbsp; managing the background processes; etc.</td> 
 </tr> 
 <tr> 
 <td align="left">kgxp&nbsp;</td> 
 <td>vos</td> 
 <td>inter process communication related functions</td> 
 </tr> 
 <tr> 
 <td align="left">kjak kjat kjb kjbl kjbm kjbr kjcc kjcs kjctc kjcts kjcv kjdd kjdm kjdr kjdx kjfc kjfm kjfs kjfz kjg kji kjl kjm kjp kjr kjs kjt kju kjx&nbsp;</td> 
 <td>ccl/dlm</td> 
 <td>dlm related functionality ; associated with RAC or parallel server operation</td> 
 </tr> 
 <tr> 
 <td align="left">kjxgf kjxgg kjxgm kjxgn kjxgna kjxgr&nbsp;</td> 
 <td>ccl/cgs</td> 
 <td>provides communication &amp; synchronisation associated with GMS or OPS related functionality as well as name service and OPS Instance Membership Recovery Facility</td> 
 </tr> 
 <tr> 
 <td align="left">kjxt&nbsp;</td> 
 <td>ccl/dlm</td> 
 <td>DLM request message management</td> 
 </tr> 
 <tr> 
 <td align="left">kjzc kjzd kjzf kjzg kjzm&nbsp;</td> 
 <td>ccl/diag</td> 
 <td>support for diagnosibility amongst OPS related services</td> 
 </tr> 
 <tr> 
 <td align="left">kkb&nbsp;</td> 
 <td>dict/sqlddl</td> 
 <td>support for operatoins which load/change table definitions</td> 
 </tr> 
 <tr> 
 <td align="left">kkbl kkbn kkbo&nbsp;</td> 
 <td>objsupp/objddl</td> 
 <td>support for tables with lobs , nested tables and varrays as well as columns with objects</td> 
 </tr> 
 <tr> 
 <td align="left">kkdc kkdl kkdo&nbsp;</td> 
 <td>dict/dictlkup</td> 
 <td>support for constraints, dictionary lookup and dictionary support for objects</td> 
 </tr> 
 <tr> 
 <td align="left">kke&nbsp;</td> 
 <td>optim/cbo</td> 
 <td>query engine cost engine; provides support functions that provide cost estimates for queries under a number of different circumstances</td> 
 </tr> 
 <tr> 
 <td align="left">kkfd&nbsp;</td> 
 <td>sqlexec/pq</td> 
 <td>support for performing parallel query operation</td> 
 </tr> 
 <tr> 
 <td align="left">kkfi&nbsp;</td> 
 <td>optim/cbo</td> 
 <td>optimizer support for matching of expressions against functional ndexes</td> 
 </tr> 
 <tr> 
 <td align="left">kkfr kkfs&nbsp;</td> 
 <td>sqlexec/pq</td> 
 <td>support for rowid range handling as well as for building parallel query query operations</td> 
 </tr> 
 <tr> 
 <td align="left">kkj&nbsp;</td> 
 <td>jobqs/jobq</td> 
 <td>job queue operation</td> 
 </tr> 
 <tr> 
 <td align="left">kkkd kkki&nbsp;</td> 
 <td>dict/dbsched</td> 
 <td>resource manager related support. Additionally, provides underlying functions provided by dbms_resource_manager and dbms_resource_manager_privs packages</td> 
 </tr> 
 <tr> 
 <td align="left">kklr&nbsp;</td> 
 <td>dict/sqlddl</td> 
 <td>provides functions used to manipulate LOGGING and/or RECOVERABLE attributes of an object (non-partitioned table or index or&nbsp; partitions of a partitioned table or index)</td> 
 </tr> 
 <tr> 
 <td align="left">kkm kkmi&nbsp;</td> 
 <td>dict/dictlkup</td> 
 <td>provides various semantic checking functions&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kkn&nbsp;</td> 
 <td>ram/analyze</td> 
 <td>support for the analyze command</td> 
 </tr> 
 <tr> 
 <td align="left">kko kkocri&nbsp;</td> 
 <td>optim/cbo</td> 
 <td>Cost based Optimizer operation : generates alternative execution plans in order to find the optimal / quickest access to the data.&nbsp; Also , support to determine cost and applicability of&nbsp; scanning a given index in trying to create or rebuild an index or a partition thereof</td> 
 </tr> 
 <tr> 
 <td align="left">kkpam kkpap&nbsp;</td> 
 <td>ram/partnmap</td> 
 <td>support for mapping predicate keys expressions to equivalent partitions</td> 
 </tr> 
 <tr> 
 <td align="left">kkpo kkpoc kkpod&nbsp;</td> 
 <td>dict/partn</td> 
 <td>support for creation and modification of partitioned objects</td> 
 </tr> 
 <tr> 
 <td align="left">kkqg kkqs kkqs1 kkqs2 kkqs3 kkqu kkqv kkqw&nbsp;</td> 
 <td>optim/vwsubq</td> 
 <td>query rewrite operation&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kks kksa kksh kksl kksm&nbsp;</td> 
 <td>dict/shrdcurs</td> 
 <td>support for managing shared cursors/ shared sql</td> 
 </tr> 
 <tr> 
 <td align="left">kkt&nbsp;</td> 
 <td>dict/sqlddl</td> 
 <td>support for creating, altering and dropping trigger definitions as well as handling the trigger operation</td> 
 </tr> 
 <tr> 
 <td align="left">kkxa&nbsp;</td> 
 <td>repl/defrdrpc</td> 
 <td>underlying support for dbms_defer_query package operations</td> 
 </tr> 
 <tr> 
 <td align="left">kkxb&nbsp;</td> 
 <td>dict/sqlddl</td> 
 <td>library cache interface for external tables&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kkxl&nbsp;</td> 
 <td>dict/plsicds</td> 
 <td>underlying support for the dbms_lob package</td> 
 </tr> 
 <tr> 
 <td align="left">kkxm&nbsp;</td> 
 <td>progint/opi</td> 
 <td>support for inter language method services</td> 
 </tr> 
 <tr> 
 <td align="left">kkxs&nbsp;</td> 
 <td>dict/plsicds</td> 
 <td>underlying support for the dbms_sys_sql package&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kkxt&nbsp;</td> 
 <td>repl/trigger</td> 
 <td>support for replication internal trigger operation</td> 
 </tr> 
 <tr> 
 <td align="left">kkxwtp&nbsp;</td> 
 <td>progint/opi</td> 
 <td>entry point into the plsql compiler</td> 
 </tr> 
 <tr> 
 <td align="left">kky&nbsp;</td> 
 <td>drv</td> 
 <td>support for alter system/session commands</td> 
 </tr> 
 <tr> 
 <td align="left">kkz kkzd kkzf kkzg kkzi kkzj kkzl kkzo kkzp kkzq kkzr kkzu kkzv&nbsp;</td> 
 <td>repl/snapshot</td> 
 <td>support for snapshots or Materialized View validation and operation</td> 
 </tr> 
 <tr> 
 <td align="left">kla klc klcli klx&nbsp;</td> 
 <td>tools/sqlldr</td> 
 <td>support for direct path sql loader operation</td> 
 </tr> 
 <tr> 
 <td align="left">kmc kmcp kmd kmm kmr&nbsp;</td> 
 <td>mts/mts</td> 
 <td>support for Multi Threaded server operation (MTS) : manange and operate the virtual circuit mechanism, handle the dispatching of massages, administer shared servers and for collecting and maintaining statistics associated with MTS</td> 
 </tr> 
 <tr> 
 <td align="left">knac knafh knaha knahc knahf knahs&nbsp;</td> 
 <td>repl/apply</td> 
 <td>replication apply operation associated with Oracle streams</td> 
 </tr> 
 <tr> 
 <td align="left">kncc&nbsp;</td> 
 <td>repl/repcache</td> 
 <td>support for replication related information stored and maintained in library cache</td> 
 </tr> 
 <tr> 
 <td align="left">kncd knce&nbsp;</td> 
 <td>repl/defrdrpc</td> 
 <td>replication related enqueue and dequeue of transction data as well as other queue related operations&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kncog&nbsp;</td> 
 <td>repl/repcache</td> 
 <td>support for loading replicaiton object group information into library cache</td> 
 </tr> 
 <tr> 
 <td align="left">kni&nbsp;</td> 
 <td>repl/trigger</td> 
 <td>support for replication internal trigger operation</td> 
 </tr> 
 <tr> 
 <td align="left">knip knip2 knipi knipl knipr knipu knipu2 knipx&nbsp;</td> 
 <td>repl/intpkg</td> 
 <td>support for replication internal package operation.&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kno&nbsp;</td> 
 <td>repl/repobj</td> 
 <td>support for replication objects&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">knp knpc knpcb knpcd knpqc knps&nbsp;</td> 
 <td>repl/defrdrpc</td> 
 <td>operations assocaied with propagating transactions to a remote node and coordination of this activity.</td> 
 </tr> 
 <tr> 
 <td align="left">knst&nbsp;</td> 
 <td>repl/stats</td> 
 <td>replication statistics collection</td> 
 </tr> 
 <tr> 
 <td align="left">knt kntg kntx&nbsp;</td> 
 <td>repl/trigger</td> 
 <td>support for replication internal trigger operation</td> 
 </tr> 
 <tr> 
 <td align="left">koc&nbsp;</td> 
 <td>objmgmt/objcache</td> 
 <td>support for managing ADTs objects in the OOCI heap</td> 
 </tr> 
 <tr> 
 <td align="left">kod&nbsp;</td> 
 <td>objmgmt/datamgr</td> 
 <td>support for persistent storage for objects : for read/write objects, to manage object IDs, and to manage object concurrency and recovery.&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">koh&nbsp;</td> 
 <td>objmgmt/objcache</td> 
 <td>object heap manager provides memory allocation services for objects</td> 
 </tr> 
 <tr> 
 <td align="left">koi&nbsp;</td> 
 <td>objmgmt/objmgr</td> 
 <td>support for object types</td> 
 </tr> 
 <tr> 
 <td align="left">koka&nbsp;</td> 
 <td>objsupp/objdata</td> 
 <td>support for reading images, inserting images, updating images, and deleting images based on object references (REFs).</td> 
 </tr> 
 <tr> 
 <td align="left">kokb kokb2&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>support for nested table objects</td> 
 </tr> 
 <tr> 
 <td align="left">kokc&nbsp;</td> 
 <td>objmgmt/objcache</td> 
 <td>support for pinning , unpinning and freeing objects</td> 
 </tr> 
 <tr> 
 <td align="left">kokd&nbsp;</td> 
 <td>objsupp/datadrv</td> 
 <td>driver on the server side for managing objects</td> 
 </tr> 
 <tr> 
 <td align="left">koke koke2 koki&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>support for managing objects</td> 
 </tr> 
 <tr> 
 <td align="left">kokl&nbsp;</td> 
 <td>objsupp/objdata</td> 
 <td>lob access</td> 
 </tr> 
 <tr> 
 <td align="left">kokl2&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>lob DML and programmatic interface support</td> 
 </tr> 
 <tr> 
 <td align="left">kokl3&nbsp;</td> 
 <td>objsupp/objdata</td> 
 <td>object temporary LOB support</td> 
 </tr> 
 <tr> 
 <td align="left">kokle kokm&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>object SQL evaluation functions</td> 
 </tr> 
 <tr> 
 <td align="left">kokn&nbsp;</td> 
 <td>objsupp/objname</td> 
 <td>naming support for objects</td> 
 </tr> 
 <tr> 
 <td align="left">koko&nbsp;</td> 
 <td>objsupp/objsup</td> 
 <td>support functions to allow oci/rpi to communicate with Object Management Subsystem (OMS).</td> 
 </tr> 
 <tr> 
 <td align="left">kokq koks koks2 koks3 koksr&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>query optimisation for objects , semantic checking and semantic rewrite operations</td> 
 </tr> 
 <tr> 
 <td align="left">kokt kokt2 kokt3&nbsp;</td> 
 <td>objsupp/objddl</td> 
 <td>object compilation type manager</td> 
 </tr> 
 <tr> 
 <td align="left">koku kokv&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>support for unparse object operators and object view support</td> 
 </tr> 
 <tr> 
 <td align="left">kol kolb kole kolf kolo&nbsp;</td> 
 <td>objmgmt/objmgr</td> 
 <td>support for object Lob buffering , object lob evaluation and object Language/runtime functions for Opaque types</td> 
 </tr> 
 <tr> 
 <td align="left">kope2 kopi2 kopo kopp2 kopu koputil kopz</td> 
 <td>objmgmt/pickler</td> 
 <td>8.1 engine implementation,&nbsp; implementation of image ops for 8.1+ image format together with various pickler related support functions</td> 
 </tr> 
 <tr> 
 <td align="left">kos&nbsp;</td> 
 <td>objsupp/objsup</td> 
 <td>object Stream interfaces for images/objects</td> 
 </tr> 
 <tr> 
 <td align="left">kot kot2 kotg&nbsp;</td> 
 <td>objmgmt/typemgr</td> 
 <td>support for dynamic type operations to create, delete, and&nbsp; update types.</td> 
 </tr> 
 <tr> 
 <td align="left">koxs koxx&nbsp;</td> 
 <td>objmgmt/objmgt</td> 
 <td>object generic image Stream routines and miscellaneous generic object functions</td> 
 </tr> 
 <tr> 
 <td align="left">kpcp kpcxlt&nbsp;</td> 
 <td>progint/kpc</td> 
 <td>Kernel programmatic connection pooling and kernel programmatic common type XLT translation routines</td> 
 </tr> 
 <tr> 
 <td align="left">kpki&nbsp;</td> 
 <td>progint/kpki</td> 
 <td>kernel programatic interface support</td> 
 </tr> 
 <tr> 
 <td align="left">kpls&nbsp;</td> 
 <td>cartserv/corecs</td> 
 <td>support for string formatting operations</td> 
 </tr> 
 <tr> 
 <td align="left">kpn&nbsp;</td> 
 <td>progint/kpn</td> 
 <td>support for server to server communication&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kpoal8 kpoaq kpob kpodny kpodp kpods kpokgt kpolob kpolon kpon&nbsp;</td> 
 <td>progint/kpo</td> 
 <td>support for programmatic operations&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kpor&nbsp;</td> 
 <td>progint/opi</td> 
 <td>support for streaming protocol used by replication</td> 
 </tr> 
 <tr> 
 <td align="left">kposc&nbsp;</td> 
 <td>progint/kpo</td> 
 <td>support for scrollable cursors</td> 
 </tr> 
 <tr> 
 <td align="left">kpotc&nbsp;</td> 
 <td>progint/opi</td> 
 <td>oracle side support functions for setting up trusted external procedure callbacks</td> 
 </tr> 
 <tr> 
 <td align="left">kpotx kpov&nbsp;</td> 
 <td>progint/kpo</td> 
 <td>support for managing local and distributed transaction coordination.</td> 
 </tr> 
 <tr> 
 <td align="left">kpp2 kpp3&nbsp;</td> 
 <td>sqllang/parse</td> 
 <td>kpp2 – parse routines for dimensions;&nbsp; kpp3 – parse support for create/alter/drop summary&nbsp; statements</td> 
 </tr> 
 <tr> 
 <td align="left">kprb kprc&nbsp;</td> 
 <td>progint/rpi</td> 
 <td>support for executing sql efficiently on the Oracle server side as well as for copying data types during rpi operations</td> 
 </tr> 
 <tr> 
 <td align="left">kptsc&nbsp;</td> 
 <td>progint/twotask</td> 
 <td>callback functions provided to all streaming operation as part of replication functionality&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kpu kpuc kpucp&nbsp;</td> 
 <td>progint/kpu</td> 
 <td>Oracle kernel side programmatic user interface,&nbsp; cursor management functions and client side connection pooling support</td> 
 </tr> 
 <tr> 
 <td align="left">kqan kqap kqas&nbsp;</td> 
 <td>argusdbg/argusdbg</td> 
 <td>server-side notifiers and callbacks for debug operations.&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kql kqld kqlp&nbsp;</td> 
 <td>dict/libcache</td> 
 <td>SQL Library Cache manager – manages the sharing of sql statements in the shared pool</td> 
 </tr> 
 <tr> 
 <td align="left">kqr&nbsp;</td> 
 <td>dict/rowcache</td> 
 <td>row cache management. The row cache consists of a set of facilities to provide fast access to table definitions and locking capabilities.</td> 
 </tr> 
 <tr> 
 <td align="left">krbi krbx krby krcr krd krpi&nbsp;</td> 
 <td>rcv</td> 
 <td>Backup and recovery related operations :&nbsp; krbi - dbms_backup_restore package underlying support.; krbx -&nbsp; proxy copy controller; krby – image copy; krcr – Recovery Controlfile Redo; krd – Recover Datafiles (Media &amp; Standby Recovery);&nbsp; krpi – support for the package : dbms_pitr</td> 
 </tr> 
 <tr> 
 <td align="left">krvg krvt&nbsp;</td> 
 <td>rcv/vwr</td> 
 <td>krvg – support for generation of redo associated with DDL; krvt – support for redo log miner viewer (also known as log miner)</td> 
 </tr> 
 <tr> 
 <td align="left">ksa ksdp ksdx kse ksfd ksfh ksfq ksfv ksi ksim ksk ksl ksm ksmd ksmg ksn ksp kspt ksq ksr kss ksst ksu ksut&nbsp;</td> 
 <td>vos</td> 
 <td>support for various kernel associated capabilities</td> 
 </tr> 
 <tr> 
 <td align="left">ksx</td> 
 <td>sqlexec/execsvc</td> 
 <td>support for query execution associated with temporary tables</td> 
 </tr> 
 <tr> 
 <td align="left">ksxa ksxp ksxr&nbsp;</td> 
 <td>vos</td> 
 <td>support for various kernel associated capabilities in relation to OPS or RAC operation</td> 
 </tr> 
 <tr> 
 <td align="left">kta&nbsp;</td> 
 <td>space/spcmgmt</td> 
 <td>support for DML locks and temporary tables associated with table access</td> 
 </tr> 
 <tr> 
 <td align="left">ktb ktbt ktc&nbsp;</td> 
 <td>txn/lcltx</td> 
 <td>transaction control operations at the block level : locking block, allocating space within the block , freeing up space, etc.</td> 
 </tr> 
 <tr> 
 <td align="left">ktec ktef ktehw ktein ktel kteop kteu&nbsp;</td> 
 <td>space/spcmgmt</td> 
 <td>support for extent management operations :&nbsp; ktec - extent concurrency operations; ktef – extent format; ktehw – extent high water mark operations; ktein – extent&nbsp; information operations; ktel – extent support for sql loader; kteop – extent operations : add extent to segment, delete extent, resize extent, etc. kteu – redo support for operations changing segment header / extent map</td> 
 </tr> 
 <tr> 
 <td align="left">ktf&nbsp;</td> 
 <td>txn/lcltx</td> 
 <td>flashback support</td> 
 </tr> 
 <tr> 
 <td align="left">ktfb ktfd ktft ktm&nbsp;</td> 
 <td>space/spcmgmt</td> 
 <td>ktfb – support for bitmapped space manipulation of files/tablespaces;&nbsp; ktfd – dictionary-based extent management; ktft – support for temporary file manipulation; ktm – SMON operation</td> 
 </tr> 
 <tr> 
 <td align="left">ktp ktpr ktr ktri&nbsp;</td> 
 <td>txn/lcltx</td> 
 <td>ktp – support for parallel transaction operation; ktpr – support for parallel transaction recovery; ktr – kernel transaction read consistency;&nbsp;&nbsp; ktri – support for dbms_resumable package</td> 
 </tr> 
 <tr> 
 <td align="left">ktsa ktsap ktsau ktsb ktscbr ktsf ktsfx ktsi ktsm ktsp ktss ktst ktsx ktt kttm&nbsp;</td> 
 <td>space/spcmgmt</td> 
 <td>support for checking and verifying space usage</td> 
 </tr> 
 <tr> 
 <td align="left">ktu ktuc ktur ktusm&nbsp;</td> 
 <td>txn/lcltx</td> 
 <td>internal management of undo and rollback segments</td> 
 </tr> 
 <tr> 
 <td align="left">kwqa kwqi kwqic kwqid kwqie kwqit kwqj kwqm kwqn kwqo kwqp kwqs kwqu kwqx&nbsp;</td> 
 <td>oltp/qs</td> 
 <td>support for advanced queuing :&nbsp; kwqa - advanced queue administration; kwqi – support for AQ PL/SQL trusted callouts; kwqic – common AQ support functions; kwqid – AQ dequeue support; kwqie – AQ enqueu support ; kwqit – time management operation ; kwqj – job queue scheduler for propagation; kwqm - Multiconsumer queue IOT support; kwqn – queue notifier; kwqo – AQ support for checking instType checking options; kwqp – queueing propagation; kwqs – statistics handling; kwqu – handles lob data. ; kwqx – support for handling transformations</td> 
 </tr> 
 <tr> 
 <td align="left">kwrc kwre&nbsp;</td> 
 <td>oltp/re</td> 
 <td>rules engine evaluation</td> 
 </tr> 
 <tr> 
 <td align="left">kxcc kxcd kxcs&nbsp;</td> 
 <td>sqllang/integ</td> 
 <td>constraint processing</td> 
 </tr> 
 <tr> 
 <td align="left">kxdr</td> 
 <td>sqlexec/dmldrv</td> 
 <td>DML driver entrypoint&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kxfp kxfpb kxfq kxfr kxfx&nbsp;</td> 
 <td>sqlexec/pq</td> 
 <td>parallel query support</td> 
 </tr> 
 <tr> 
 <td align="left">kxhf kxib&nbsp;</td> 
 <td>sqlexec/execsvc</td> 
 <td>khhf- support for hash join file and memory management; kxib – index buffering operations</td> 
 </tr> 
 <tr> 
 <td align="left">kxs&nbsp;</td> 
 <td>dict/instmgmt</td> 
 <td>support for executing shared cursors</td> 
 </tr> 
 <tr> 
 <td align="left">kxti kxto kxtr&nbsp;</td> 
 <td>dbproc/trigger</td> 
 <td>support for trigger operation</td> 
 </tr> 
 <tr> 
 <td align="left">kxtt&nbsp;</td> 
 <td>ram/partnmap</td> 
 <td>support for temporary table operations</td> 
 </tr> 
 <tr> 
 <td align="left">kxwph&nbsp;</td> 
 <td>ram/data</td> 
 <td>support for managing attributes of the segment of a table / cluster / table-partition</td> 
 </tr> 
 <tr> 
 <td align="left">kza&nbsp;</td> 
 <td>security/audit</td> 
 <td>support for auditing operations&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kzar&nbsp;</td> 
 <td>security/dac</td> 
 <td>support for application auditing</td> 
 </tr> 
 <tr> 
 <td align="left">kzck&nbsp;</td> 
 <td>security/crypto</td> 
 <td>encryption support</td> 
 </tr> 
 <tr> 
 <td align="left">kzd&nbsp;</td> 
 <td>security/dac</td> 
 <td>support for dictionary access by security related functions&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">kzec&nbsp;</td> 
 <td>security/dbencryption</td> 
 <td>support inserting and retrieving encrypted objects into and out of the database</td> 
 </tr> 
 <tr> 
 <td align="left">kzfa kzft&nbsp;</td> 
 <td>security/audit</td> 
 <td>support for fine grained auditing</td> 
 </tr> 
 <tr> 
 <td align="left">kzia&nbsp;</td> 
 <td>security/logon</td> 
 <td>identification and authentication operations</td> 
 </tr> 
 <tr> 
 <td align="left">kzp kzra kzrt kzs kzu kzup&nbsp;</td> 
 <td>security/dac</td> 
 <td>security related operations associated with privileges&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">msqima msqimb&nbsp;</td> 
 <td>sqlexec/sqlgen</td> 
 <td>support for generating sql statments</td> 
 </tr> 
 <tr> 
 <td align="left">ncodef npi npil npixfr&nbsp;</td> 
 <td>progint/npi</td> 
 <td>support for managing remote network connection from&nbsp; within the server itself</td> 
 </tr> 
 <tr> 
 <td align="left">oba&nbsp;</td> 
 <td>sqllang/outbufal</td> 
 <td>operator buffer allocate for various types of operators : concatenate, decode, NVL, etc.&nbsp; the list is extensive.</td> 
 </tr> 
 <tr> 
 <td align="left">ocik&nbsp;</td> 
 <td>progint/oci</td> 
 <td>OCI oracle server functions</td> 
 </tr> 
 <tr> 
 <td align="left">opiaba opidrv opidsa opidsc opidsi opiexe opifch opiino opilng opipar opipls opirip opitsk opix&nbsp;</td> 
 <td>progint/opi</td> 
 <td>OPI Oracle server functions – these are at the top of the server stack and are called indirectly by ythe client in order to server the client request.</td> 
 </tr> 
 <tr> 
 <td align="left">orlr&nbsp;</td> 
 <td>objmgmt/objmgr</td> 
 <td>support for&nbsp; C langauge interfaces to user-defined types (UDTs)&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">orp&nbsp;</td> 
 <td>objmgmt/pickler</td> 
 <td>oracle’s external pickler / opaque type interfaces</td> 
 </tr> 
 <tr> 
 <td align="left">pesblt pfri pfrsqc&nbsp;</td> 
 <td>plsql/cox</td> 
 <td>pesblt – pl/sql built in interpreter; pfri – pl/sql runtime; pfrsqc – pl/sql callbacks for array sql and dml with returning</td> 
 </tr> 
 <tr> 
 <td align="left">piht&nbsp;</td> 
 <td>plsql/gen/utl</td> 
 <td>support for pl/sql implementation of utl_http package</td> 
 </tr> 
 <tr> 
 <td align="left">pirg&nbsp;</td> 
 <td>plsql/cli/utl_raw</td> 
 <td>support for pl/sql implementation of utl_raw package</td> 
 </tr> 
 <tr> 
 <td align="left">pism&nbsp;</td> 
 <td>plsql/cli/utl_smtp</td> 
 <td>support for pl/sql implementation of utl_smtp package</td> 
 </tr> 
 <tr> 
 <td align="left">pitcb&nbsp;</td> 
 <td>plsql/cli/utl_tcp</td> 
 <td>support for pl/sql implementation of utl_tcp package</td> 
 </tr> 
 <tr> 
 <td align="left">piur&nbsp;</td> 
 <td>plsql/gen/utl_url</td> 
 <td>support for pl/sql implementation of utl_url package</td> 
 </tr> 
 <tr> 
 <td align="left">plio&nbsp;</td> 
 <td>plsql/pkg</td> 
 <td>pl/sql object instantiation&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">plslm&nbsp;</td> 
 <td>plsql/cox</td> 
 <td>support for NCOMP processing</td> 
 </tr> 
 <tr> 
 <td align="left">plsm pmuc pmuo pmux&nbsp;</td> 
 <td>objmgmt/pol</td> 
 <td>support for pl/sql handling of collections</td> 
 </tr> 
 <tr> 
 <td align="left">prifold priold&nbsp;</td> 
 <td>plsql/cox</td> 
 <td>support to allow rpc forwarding to an older release&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">prm&nbsp;</td> 
 <td>sqllang/param</td> 
 <td>parameter handling associated with sql layer</td> 
 </tr> 
 <tr> 
 <td align="left">prsa prsc prssz&nbsp;</td> 
 <td>sqllang/parse</td> 
 <td>prsa – parser for alter cluster command; prsc – parser for create database command; prssz – support for parse context to be saved</td> 
 </tr> 
 <tr> 
 <td align="left">psdbnd psdevn&nbsp;</td> 
 <td>progint/dbpsd</td> 
 <td>psdbnd – support for managing bind variables; psdevn – support for pl/sql debugger</td> 
 </tr> 
 <tr> 
 <td align="left">psdicd&nbsp;</td> 
 <td>progint/plsicds</td> 
 <td>small number of ICD to allow pl/sql to call into ‘C’ source</td> 
 </tr> 
 <tr> 
 <td align="left">psdmsc psdpgi&nbsp;</td> 
 <td>progint/dbpsd</td> 
 <td>psdmsc – pl/sql system dependent miscellaneous functions ; psdpgi – support for opening and closing cursors in pl/sql</td> 
 </tr> 
 <tr> 
 <td align="left">psf&nbsp;</td> 
 <td>plsql/pls</td> 
 <td>pl/sql service related functions for instantiating called pl/sql unit in library cache</td> 
 </tr> 
 <tr> 
 <td align="left">qbadrv qbaopn&nbsp;</td> 
 <td>sqllang/qrybufal</td> 
 <td>provides allocation of buffer and control structures in query execution&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">qcdl qcdo&nbsp;</td> 
 <td>dict/dictlkup</td> 
 <td>qcdl – query compile semantic analysis; qcdo – query compile dictionary support for objects</td> 
 </tr> 
 <tr> 
 <td align="left">qci&nbsp;</td> 
 <td>dict/shrdcurs</td> 
 <td>support for SQL language parser and semantic analyser</td> 
 </tr> 
 <tr> 
 <td align="left">qcop qcpi qcpi3 qcpi4 qcpi5&nbsp;</td> 
 <td>sqllang/parse</td> 
 <td>support for query compilation parse phase</td> 
 </tr> 
 <tr> 
 <td align="left">qcs qcs2 qcs3 qcsji qcso&nbsp;</td> 
 <td>dict/dictlkup</td> 
 <td>support for semantic analysis by SQL compiler</td> 
 </tr> 
 <tr> 
 <td align="left">qct qcto&nbsp;</td> 
 <td>sqllang/typeconv</td> 
 <td>qct – query compile type check operations; qcto -&nbsp; query compile type check operators</td> 
 </tr> 
 <tr> 
 <td align="left">qcu&nbsp;</td> 
 <td>sqllang/parse</td> 
 <td>various utilities provided for sql compilation</td> 
 </tr> 
 <tr> 
 <td align="left">qecdrv&nbsp;</td> 
 <td>sqllang/qryedchk</td> 
 <td>driver performing high level checks on sql language query capabilities</td> 
 </tr> 
 <tr> 
 <td align="left">qerae qerba qerbc qerbi qerbm qerbo qerbt qerbu qerbx qercb qercbi qerco qerdl qerep qerff qerfi qerfl qerfu qerfx qergi qergr qergs qerhc qerhj qeril qerim qerix qerjm qerjo qerle qerli qerlt qerns qeroc qeroi qerpa qerpf qerpx qerrm qerse qerso qersq qerst qertb qertq qerua qerup qerus qervw qerwn qerxt&nbsp;</td> 
 <td>sqlexec/rowsrc</td> 
 <td>row source operators :&nbsp; qerae – row source (And-Equal) implementation; qerba – Bitmap Index AND row source; qerbc – bitmap index compaction row source; qerbi – bitmap index creation row source; qerbm – QERB Minus row source; qerbo&nbsp; – Bitmap Index OR row source; qerbt – bitmap convert row source; qerbu – Bitmap Index Unlimited-OR row source; qerbx – bitmap index access row source; qercb – row source: connect by; qercbi – support for connect by; qerco – count row source; qerdl – row source delete; qerep – explosion row source; qerff – row source fifo buffer; qerfi&nbsp; – first row row source; qerfl&nbsp; – filter row source definition; qerfu – row source: for update; qerfx – fixed table row source; qergi – granule iterator row source; qergr – group by rollup row source; qergs – group by sort row source; qerhc – row sources hash clusters; qerhj – row source Hash Join;&nbsp; qeril&nbsp; – In-list row source; qerim – Index Maintenance row source; qerix – Index row source; qerjo – row source: join; qerle – linear execution row source implementation; qerli – parallel create index; qerlt – row source populate Table;&nbsp; qerns&nbsp; – group by No Sort row source; qeroc – object collection iterator row source; qeroi – extensible indexing query component; qerpa – partition row sources; qerpf – query execution row source: prefetch; qerpx – row source: parallelizer; qerrm – remote row source; qerse – row source: set implementation; qerso – sort row source; qersq - row source for sequence number; qerst&nbsp; – query execution row sources: statistics; qertb – table row source; qertq&nbsp; – table queue row source; qerua – row source : union-All;&nbsp; qerup – update row source; qerus – upsert row source ; qervw – view row source; qerwn – WINDOW row source; qerxt – external table fetch row source</td> 
 </tr> 
 <tr> 
 <td align="left">qes3t qesa qesji qesl qesmm qesmmc&nbsp;</td> 
 <td>sqlexec/execsvc</td> 
 <td>run time support for sql execution</td> 
 </tr> 
 <tr> 
 <td align="left">qkacon qkadrv qkajoi qkatab qke qkk qkn qkna qkne&nbsp;</td> 
 <td>sqlexec/rwsalloc</td> 
 <td>SQL query dynamic structure allocation routines</td> 
 </tr> 
 <tr> 
 <td align="left">qks3t&nbsp;</td> 
 <td>sqlexec/execsvc</td> 
 <td>query execution service associated with temp table transformation</td> 
 </tr> 
 <tr> 
 <td align="left">qksmm qksmms qksop&nbsp;</td> 
 <td>sqllang/compsvc</td> 
 <td>qksmm -&nbsp; memory management services for the SQL compiler; qksmms – memory management simulation services for the SQL compiler; qksop – query compilation service for operand processing</td> 
 </tr> 
 <tr> 
 <td align="left">qkswc&nbsp;</td> 
 <td>sqlexec/execsvc</td> 
 <td>support for temp table transformation associated for with clause.</td> 
 </tr> 
 <tr> 
 <td align="left">qmf&nbsp;</td> 
 <td>xmlsupp/util</td> 
 <td>support for ftp server; implements processing of ftp commands</td> 
 </tr> 
 <tr> 
 <td align="left">qmr qmrb qmrs&nbsp;</td> 
 <td>xmlsupp/resolver</td> 
 <td>support hierarchical resolver&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">qms&nbsp;</td> 
 <td>xmlsupp/data</td> 
 <td>support for storage and retrieval of XOBs</td> 
 </tr> 
 <tr> 
 <td align="left">qmurs&nbsp;</td> 
 <td>xmlsupp/uri</td> 
 <td>support for handling URIs</td> 
 </tr> 
 <tr> 
 <td align="left">qmx qmxsax&nbsp;</td> 
 <td>xmlsupp/data</td> 
 <td>qmx – xml support; qmxsax – support for handling sax processing</td> 
 </tr> 
 <tr> 
 <td align="left">qmxtc&nbsp;</td> 
 <td>xmlsupp/sqlsupp</td> 
 <td>support for ddl&nbsp; and other operators related to the sql XML support</td> 
 </tr> 
 <tr> 
 <td align="left">qmxtgx&nbsp;</td> 
 <td>xmlsupp</td> 
 <td>support for transformation : ADT -&gt; XML</td> 
 </tr> 
 <tr> 
 <td align="left">qmxtsk&nbsp;</td> 
 <td>xmlsupp/sqlsupp</td> 
 <td>XMLType support functions&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">qsme&nbsp;</td> 
 <td>summgmt/dict</td> 
 <td>summary management expression processing</td> 
 </tr> 
 <tr> 
 <td align="left">qsmka qsmkz&nbsp;</td> 
 <td>dict/dictlkup</td> 
 <td>qsmka – support to analyze request in order to determine whether a summary could be created that would be useful; qsmkz – support for create/alter summary semantic analysis&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">qsmp qsmq qsmqcsm qsmqutl&nbsp;</td> 
 <td>summgmt/dict</td> 
 <td>qsmp – summary management partition processing; qsmq – summary management dictionary access; qsmqcsm – support for create / drop / alter summary and related dimension operations; qsmqutl – support for summaries&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">qsms&nbsp;</td> 
 <td>summgmt/advsvr</td> 
 <td>summary management advisor</td> 
 </tr> 
 <tr> 
 <td align="left">qxdid&nbsp;</td> 
 <td>objsupp/objddl</td> 
 <td>support for domain index ddl operations</td> 
 </tr> 
 <tr> 
 <td align="left">qxidm&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>support for extensible index dml operations</td> 
 </tr> 
 <tr> 
 <td align="left">qxidp&nbsp;</td> 
 <td>objsupp/objddl</td> 
 <td>support for domain index ddl partition operations</td> 
 </tr> 
 <tr> 
 <td align="left">qxim&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>extensible indexing support for objects</td> 
 </tr> 
 <tr> 
 <td align="left">qxitex qxopc qxope&nbsp;</td> 
 <td>objsupp/objddl</td> 
 <td>qxitex – support for create / drop indextype; qxope – execution time support for operator&nbsp; callbacks; qxope – execution time support for operator DDL</td> 
 </tr> 
 <tr> 
 <td align="left">qxopq qxuag qxxm&nbsp;</td> 
 <td>objsupp/objsql</td> 
 <td>qxopq – support for queries with user-defined operators; qxuag – support for user defined aggregate processing; qxxm – queries involving external tables&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">rfmon rfra rfrdb rfrla rfrm rfrxpt&nbsp;</td> 
 <td>drs</td> 
 <td>implements 9i data guard broker monitor&nbsp;</td> 
 </tr> 
 <tr> 
 <td align="left">rnm&nbsp;</td> 
 <td>dict/sqlddl</td> 
 <td>manages rename statement operation</td> 
 </tr> 
 <tr> 
 <td align="left">rpi&nbsp;</td> 
 <td>progint/rpi</td> 
 <td>recursive procedure interface which handles the the environment setup where multiple recursize statements are executed from one top level statement</td> 
 </tr> 
 <tr> 
 <td align="left">rwoima&nbsp;</td> 
 <td>sqlexec/rwoprnds</td> 
 <td>row operand operations</td> 
 </tr> 
 <tr> 
 <td align="left">rwsima&nbsp;</td> 
 <td>sqlexec/rowsrc</td> 
 <td>row source implementation/retrieval according to the defining query</td> 
 </tr> 
 <tr> 
 <td align="left">sdbima&nbsp;</td> 
 <td>sqlexec/sort</td> 
 <td>manages and performs sort operation</td> 
 </tr> 
 <tr> 
 <td align="left">selexe&nbsp;</td> 
 <td>sqlexec/dmldrv</td> 
 <td>handles the operation of select statement execution</td> 
 </tr> 
 <tr> 
 <td align="left">skgm&nbsp;</td> 
 <td>osds</td> 
 <td>platform specific memory management rountines interfacing with O.S. allocation functions</td> 
 </tr> 
 <tr> 
 <td align="left">smbima sor&nbsp;</td> 
 <td>sqlexec/sort</td> 
 <td>manages and performs sort operation</td> 
 </tr> 
 <tr> 
 <td align="left">sqn&nbsp;</td> 
 <td>dict/sqlddl</td> 
 <td>support for parsing references to sequences</td> 
 </tr> 
 <tr> 
 <td align="left">srdima srsima stsima&nbsp;</td> 
 <td>sqlexec/sort</td> 
 <td>manages and performs sort operation</td> 
 </tr> 
 <tr> 
 <td align="left">tbsdrv&nbsp;</td> 
 <td>space/spcmgmt</td> 
 <td>operations for executing create / alter / drop tablespace and related supporting functions</td> 
 </tr> 
 <tr> 
 <td align="left">ttcclr ttcdrv ttcdty ttcrxh ttcx2y&nbsp;</td> 
 <td>progint/twotask</td> 
 <td>two task common layer which provides high level interaction and negotiation functions for Oracle client when communicating with the server.&nbsp; It also provides important function of converting client side data / data types into equivalent on the server and vice versa</td> 
 </tr> 
 <tr> 
 <td align="left">uixexe ujiexe updexe upsexe&nbsp;</td> 
 <td>sqlexec/dmldrv</td> 
 <td>support for : index maintenance operations, the execution of the update statement and associated actions connected with update as well as the upsert command which combines the operations of update and insert</td> 
 </tr> 
 <tr> 
 <td align="left">vop&nbsp;</td> 
 <td>optim/vwsubq</td> 
 <td>view optimisation related functionality</td> 
 </tr> 
 <tr> 
 <td align="left">xct&nbsp;</td> 
 <td>txn/lcltx</td> 
 <td>support for the management of transactions and savepoint operations</td> 
 </tr> 
 <tr> 
 <td align="left">xpl&nbsp;</td> 
 <td>sqlexec/expplan</td> 
 <td>support for the explain plan command</td> 
 </tr> 
 <tr> 
 <td align="left">xty&nbsp;</td> 
 <td>sqllang/typeconv</td> 
 <td>type checking functions</td> 
 </tr> 
 <tr> 
 <td align="left">zlke&nbsp;</td> 
 <td>security/ols/intext</td> 
 <td>label security error handling component</td> 
 </tr> 
 </tbody> 
</table>

## 三. 其他参数说明 ##

在MOS 的文档： [\[ID28929.1\]][ID28929.1] 上有说明。

[ORA-600\[2662\] Block SCN is ahead of Current SCN \[ID 28929.1\]][ID28929.1]

[http://blog.csdn.net/tianlesoftware/article/details/6106130][ID28929.1]

[Oracle DB 服务器 系统时间修改问题 与 SCN 关系的深入研究][Oracle DB _ _ _ SCN]

[http://blog.csdn.net/tianlesoftware/article/details/6163859][Oracle DB _ _ _ SCN]

ORA-600 各个参数的格式和说明如下：

ERROR:

ORA-600 \[2662\] \[a\] \[b\] \[c\] \[d\] \[e\]

ARGUMENTS:

Arg \[a\] Current SCN WRAP

Arg \[b\] Current SCN BASE

Arg \[c\] dependent SCN WRAP

Arg \[d\] dependent SCN BASE

Arg \[e\] Where present this is the DBA wherethe dependent SCN came from.

注意，这里的DBA 指的是Data Block Address. 相关说明，参考我的Blog：

[Oracle rdba和 dba 说明][Oracle rdba_ dba]

[http://blog.csdn.net/tianlesoftware/article/details/6529346][Oracle rdba_ dba]

From kcrf.h:

Ifthe SCN comes from the recent or current SCN then a dba of zero is saved. If itcomes from undo$ because the undo segment is not available then the undosegment number is saved, which looks like a block from file 0. If the SCN isfor a media recovery redo (i.e. block number == 0 in change vector), then thedba is for block 0 of the relevant datafile. If it is from another database fora distributed transaction then dba is DBAINF(). If it comes from a TX lock thenthe dba is really usn<<16+slot.

在MOS 的文档：\[ID 365536.1\] 里提到了SCN 与SCN WRAP，SCN BASE这两个参数的关系。

SCN value is storedinternally as :

（1）SCN\_wrap

（2）SCN\_base

Wheneverthe SCN is incremented, the BASE component is incremented first unil it reachesit maximum. Once the BASE reaches the maximum value allowed, it is initializedto zero again after incrementing the WRAP by 1.

\--开始时WRAP 为0，即SCN\_WRP=0.当BASE增长到最大值后，SCN\_BAS变为0. 同时SCN\_WRP增长到1

Using this logic, we cancalculate the timestamp of the SCN as follows:

(SCN\_WRP\* 4294967296) + SCN\_BAS should give us the SCN in the number format

--SCN 的计算公式，这里我们看出SCN 是根据SCN\_BAS计算出来的。和系统时间是没有关系的。 只是方便我们来进行操作，如闪回恢复，而将SCN 和 系统时间每隔5分钟进行一次映射。 映射完后，由SMON进程将映射关系写入SMON\_SCN\_TIME表。 可以把SCN 看成是Oracle内部的时间。

To get the time/date for an SCN value in9i, use the following example:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

\-- (a) Get the current SCN base.

SQL>select max(scn\_bas) SCN\_BASE fromsmon\_scn\_time;

1603342197

\--(b) Get the complete SCN and thetimestamp.

SQL> alter session setNLS\_DATE\_FORMAT='DD-MON-YY HH:MI:SS';

SQL> select time\_dp TIMESTAMP,scn\_wrp\*4294967296+SCN\_bas SCN from smon\_scn\_time where scn\_bas='1603342197';

TIMESTAMP SCN

\------------------ ----------

28-JUL-06 05:31:08 8252235517813

现在来看下这5个参数之间的关系。

ARGUMENTS:

Arg \[a\] Current SCN WRAP

Arg \[b\] Current SCN BASE

Arg \[c\] dependent SCNWRAP

Arg \[d\] dependent SCN BASE

Arg \[e\] Where present this is the DBA wherethe dependent SCN came from.

根据SCN WRAP 和 SCN BASE，我们可以计算出当前SCN 对应的timestamp。

对与depent SCN 和 current SCN 关系，咨询了一下dbsnake。给出的回复如下：

当一个库是clean shutdown的时候，Oracle一定会做full checkpoint，把所有的dirty block都写回各自的datafile，同时把当前的SCN作为checkpoint SCN写回到各个datafile的datafile header中。也就是说，如果一个库是clean shutdown，那么这个库不可能有一个数据块的块里的SCN（Oracle的一个数据块里的SCN有三种，分别是块头的SCN，CSC和ITL中记录的commit SCN）比刚才写回的checkpoint SCN要大。

当一个库启动时，Oracle会做一系列的校验，其中有一个检查就是Oracle会去检查system表空间下的某些块，如果Oracle发现这些块里的SCN要比这个库当前的current SCN（实际上，启库时的current SCN就来源于shutdown时记录在datafileheader中的checkpoint SCN）要大的时候，就表明这个库是有问题了，

此时Oracle就会报跟SCN相关的一系列错误，ORA-600\[2662\]只是其中的一种。对于ORA-600\[2662\]这种情况，dependent SCN实际上就是Oracle发现有问题的system表空间下的某些块里的SCN，这个SCN可能是这个块里ITL中记录的commit SCN，也有可能是CSC (cleanout SCN)。

根据dbsnake 的说明，这个dependent SCN 是某个数据块里的SCN. 正常情况下，这个SCN 是要小于current SCN的，当dependent SCN 大于current SCN 就会报相关的错误。instance failure 和physical corruption 都可能会造成这个问题。

[Current online Redo _ Undo]: http://blog.csdn.net/tianlesoftware/article/details/6261475
[Oracle]: http://lib.csdn.net/base/oracle
[ID28929.1]: http://blog.csdn.net/tianlesoftware/article/details/6106130
[Oracle DB _ _ _ SCN]: http://blog.csdn.net/tianlesoftware/article/details/6163859
[Oracle rdba_ dba]: http://blog.csdn.net/tianlesoftware/article/details/6529346