数据库关键字整理之——海量数据库

我就是我 2024-03-23 15:23 16阅读 0赞

数据库关键字整理之——海量数据库  
原创2023-04-20 12:13·贺浦力特  
关键字是指在数据库中有意义的字，通常是数据库内部使用， 不能用于命名用户的数据对象。 有的数据库还会详细划分，例如分为关键字，候选字，甚至更详细的分类。分类的标准例如有的是绝对不可以使用，有的通过一定手段例如添加双引号可以使用。

我们为了方便统一称之为关键字，通常用户编写的对象中使用关键字会造成错误或不确定的影响，为了避免这个问题，用户应该避免使用数据库的关键字(含保留字或其他保留别名等)。

这个系列主要整理了各大数据库的关键字，可以用于建库，建表，写存储过程，函数等场景避免冲突。最后会有个脚本工具用来检查是否使用关键字。

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### Vastbase海量数据库 ###

SQL 里有保留字和非保留字之分。根据标准，保留字决不能用做其他标识符。非保留字只是在特定的 环境里有特殊的含义，而在其他环境里是可以用做标识符的。标识符的命名需要遵守如下规范：

标识符需要为字母、下划线、数字（0-9）或美元符号（$）。  
标识符必须以字母（a-z）或下划线（\_）开头。

<table> 
 <thead> 
  <tr> 
   <th>Key Word</th> 
   <th>VASTBASE</th> 
   <th>SQL:1999</th> 
   <th>SQL-92</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>ABORT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ABS</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ABSOLUTE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ACCESS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ACCOUNT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ACTION</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ADA</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>ADD</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ADMIN</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AFTER</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AGGREGATE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ALIAS</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ALL</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ALLOCATE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ALSO</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ALTER</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ALWAYS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ANALYSE</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ANALYZE</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AND</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ANY</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>APP</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ARE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ARRAY</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AS</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ASC</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ASENSITIVE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ASSERTION</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ASSIGNMENT</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ASYMMETRIC</td> 
   <td>保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ATOMIC</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ATTRIBUTE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AUDIT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AUTHID</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AUTHORIZATION</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>AUTOEXTEND</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AUTOMAPPED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>AVG</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>BACKWARD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BARRIER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BEFORE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BEGIN</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>BEGIN_NON_ANOYBLOCK</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BETWEEN</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>BIGINT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BINARY</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BINARY_DOUBLE</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BINARY_INTEGER</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BIT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>BITVAR</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BIT_LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>BLOB</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BLOCK</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BODY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BOOLEAN</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BOTH</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>BUCKETS</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BREADTH</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BY</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>C</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CACHE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CALL</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CALLED</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CARDINALITY</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CASCADE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CASCADED</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CASE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CAST</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CATALOG</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CATALOG_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CHAIN</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CHAR</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CHARACTER</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CHARACTERISTICS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CHARACTER_LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CHARACTER_SET_CATALOG</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CHARACTER_SET_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CHARACTER_SET_SCHEMA</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CHAR_LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CHECK</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CHECKED</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CHECKPOINT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CLASS</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CLEAN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CLASS_ORIGIN</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CLOB</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CLOSE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CLUSTER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>COALESCE</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>COBOL</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>COLLATE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>COLLATION</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>COLLATION_CATALOG</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>COLLATION_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>COLLATION_SCHEMA</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>COLUMN</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>COLUMN_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>COMMAND_FUNCTION</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>COMPLETE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>COMMAND_FUNCTION_CODE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>COMMENT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>COMMENTS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>COMMIT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>COMMITTED</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>COMPRESS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>COMPLETION</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CONCURRENTLY</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CONDITION</td> 
   <td>-</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CONDITION_NUMBER</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CONFIGURATION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CONNECT</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CONNECTION</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CONNECTION_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CONSTRAINT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CONSTRAINTS</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CONSTRAINT_CATALOG</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CONSTRAINT_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CONSTRAINT_SCHEMA</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CONSTRUCTOR</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CONTAINS</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CONTENT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CONTINUE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CONVERSION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CONVERT</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>COORDINATOR</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>COPY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CORRESPONDING</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>COST</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>COUNT</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CREATE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CROSS</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CSV</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CUBE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CURRENT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CURRENT_CATALOG</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CURRENT_DATE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CURRENT_PATH</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CURRENT_ROLE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CURRENT_SCHEMA</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>CURRENT_TIME</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CURRENT_TIMESTAMP</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CURRENT_USER</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CURSOR</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>CURSOR_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>CYCLE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DATA</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>DATABASE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DATAFILE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DATE</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DATE_FORMAT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DATETIME_INTERVAL_CODE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>DATETIME_INTERVAL_PRECISION</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>DAY</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DBCOMPATIBILITY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DBTIMEZONE</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DEALLOCATE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DEC</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DECIMAL</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DECLARE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DECODE</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DEFAULT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DEFAULTS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DEFERRABLE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DEFERRED</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DEFINED</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DEFINER</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DELETE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DELIMITER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DELIMITERS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DELTA</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DEPTH</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DEREF</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DESC</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DESCRIBE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DESCRIPTOR</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DESTROY</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DESTRUCTOR</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DETERMINISTIC</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DIAGNOSTICS</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DICTIONARY</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DIRECT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DIRECTORY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DISABLE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DISCARD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DISCONNECT</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DISPATCH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DISTINCT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DISTRIBUTE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DISTRIBUTION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DO</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DOCUMENT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DOMAIN</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DOUBLE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DROP</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>DUPLICATE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DYNAMIC</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>DYNAMIC_FUNCTION</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>DYNAMIC_FUNCTION_CODE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EACH</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ELSE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ENABLE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ENCODING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ENCRYPTED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>END</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>END-EXEC</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ENFORCED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ENUM</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EOL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EQUALS</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ESCAPE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ESCAPING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EVERY</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EXCEPT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>EXCEPTION</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>EXCHANGE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EXCLUDE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EXCLUDING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EXCLUSIVE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EXEC</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>EXECUTE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>EXISTING</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EXISTS</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>EXPLAIN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EXTENSION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>EXTERNAL</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>EXTRACT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FALSE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FAMILY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FAST</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FETCH</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FENCED</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FILEHEADER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FILE_TYPE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FILL_MISSING_FIELDS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FILTER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FINAL</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FIRST</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FIXED</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FLASHBACK</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FLOAT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FOLLOWING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FOR</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FORCE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FOREIGN</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FORMATTER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FORTRAN</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>FORWARD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FOUND</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FREE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FREEZE</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FROM</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FULL</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>FUNCTION</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>FUNCTIONS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>G</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>GENERAL</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>GENERATED</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>GET</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>GLOBAL</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>GO</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>GOTO</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>GRANT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>GRANTED</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>GREATEST</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>GROUP</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>GROUPING</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>HANDLER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>HAVING</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>HEADER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>HIERARCHY</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>HOLD</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>HOST</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>HOUR</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>IDENTIFIED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>IDENTITY</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>IF</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>IGNORE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ILIKE</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>IMMEDIATE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>IMMUTABLE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>IMPLEMENTATION</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>IMPLICIT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>IN</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INCLUDING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INCREMENT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INDEX</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INDEXES</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INDICATOR</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INFIX</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INHERIT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INHERITS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INITIAL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INITIALIZE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INITIALLY</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INITRANS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INLINE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INNER</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INOUT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INPUT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INSENSITIVE</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INSERT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INSTANCE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INSTANTIABLE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INSTEAD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>INT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INTEGER</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INTERSECT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INTERVAL</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INTO</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>INVOKER</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>IP</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>IS</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ISNULL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ISOLATION</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ITERATE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>JOIN</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>K</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>KEY</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>KEY_MEMBER</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>KEY_TYPE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>KILL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LABEL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LANGUAGE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>LARGE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LAST</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>LATERAL</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LC_COLLATE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LC_CTYPE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LEADING</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>LEAKPROOF</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LEAST</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LEFT</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>LESS</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LEVEL</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>LIKE</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>LIMIT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LIST</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LISTEN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOAD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOCAL</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>LOCALTIME</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOCALTIMESTAMP</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOCATION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOCATOR</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOCK</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOG</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOGGING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOGIN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOGIN_ANY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOGIN_FAILURE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOGIN_SUCCESS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOGOUT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOOP</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>LOWER</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>M</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MAP</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MAPPING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MASKING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MATCH</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>MATCHED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MATERIALIZED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MAX</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>MAXEXTENTS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MAXSIZE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MAXTRANS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MAXVALUE</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MERGE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MESSAGE_LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>MESSAGE_OCTET_LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>MESSAGE_TEXT</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>METHOD</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MIN</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>MINEXTENTS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MINUS</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MINUTE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>MINVALUE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MOD</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MODE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MODIFIES</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MODIFY</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MODULE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>MODULUS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MONTH</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>MORE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>MOVE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MOVEMENT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>MUMPS</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>NAME</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>NAMES</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NATIONAL</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NATURAL</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NCHAR</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NCLOB</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NEW</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NEXT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NLSSORT</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NO</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NOCACHE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOCOMPRESS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOCYCLE</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NODE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOLOGGING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOLOGIN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOMAXVALUE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOMINVALUE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NONE</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOORDER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NORMALLY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NOTHING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOTIFY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOTNULL</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NOWAIT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NULL</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NULLABLE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>NULLIF</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NULLS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NUMBER</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>NUMERIC</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>NUMSTR</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NVARCHAR2</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>NVL</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OBJECT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OCTET_LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>OF</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>OFF</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OFFSET</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OIDS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OLD</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ON</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ONLY</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>OPEN</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>OPERATION</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OPERATOR</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OPTIMIZATION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OPTION</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>OPTIONS</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OR</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ORDER</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ORDINALITY</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OUT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OUTER</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>OUTPUT</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>OVER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OVERLAPS</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>OVERLAY</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OVERRIDING</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OWNED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>OWNER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PAD</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PARAMETER</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARAMETERS</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARAMETER_MODE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARAMETER_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARAMETER_ORDINAL_POSITION</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARAMETER_SPECIFIC_CATALOG</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARAMETER_SPECIFIC_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARAMETER_SPECIFIC_SCHEMA</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARSER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARTIAL</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PARTITION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PARTITIONS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PASCAL</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>PASSING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PASSWORD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PATH</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PCTFREE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PERCENT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PERFORMANCE</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PERM</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PIPELINED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PLACING</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PLANS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PLI</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>POOL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>POSITION</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>POSTFIX</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PRECEDING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PRECISION</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PREFERRED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PREFIX</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PREORDER</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PREPARE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PREPARED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PRESERVE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PRIMARY</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PRIOR</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PRIVATE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PRIVILEGE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PRIVILEGES</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PROCEDURAL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PROCEDURE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>PROFILE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>PUBLIC</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>QUERY</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>QUOTE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RANGE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RAW</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>READ</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>READS</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REAL</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>REASSIGN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REBUILD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RECHECK</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RECURSIVE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REF</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REFERENCES</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>REFERENCING</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REFRESH</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REINDEX</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REJECT</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RELATIVE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>RELEASE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RELOPTIONS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REMAINDER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REMOTE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REMOVE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RENAME</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REPEATABLE</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>REPLACE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REPLICA</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RESET</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RESIZE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RESOURCE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RESTART</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RESTRICT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>RESULT</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RETURN</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RETURNED_LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>RETURNED_OCTET_LENGTH</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>RETURNED_SQLSTATE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>RETURNING</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>RETURNS</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REUSE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>REVOKE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>RIGHT</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ROLE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROLES</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROLLBACK</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ROLLUP</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROUTINE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROUTINE_CATALOG</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROUTINE_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROUTINE_SCHEMA</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROW</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROWS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROWID</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROWNUM</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ROWS</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>ROW_COUNT</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>RULE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SAMPLE</td> 
   <td>作为函数名或类型 名的关键字</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SAVEPOINT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SCALE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>SCHEMA</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SCHEMA_NAME</td> 
   <td></td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>SCOPE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SCROLL</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SEARCH</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SECOND</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SECTION</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SECURITY</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SEED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>SELECT</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SELF</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SENSITIVE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SEQUENCE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SEQUENCES</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SERIALIZABLE</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>SERVER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SERVER_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>SESSION</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SESSIONTIMEZONE</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SESSION_USER</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SET</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SETOF</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SETS</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SHARE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SHIPPABLE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SHOW</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SHUTDOWN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SIMILAR</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SIMPLE</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SIZE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SMALLDATETIME</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SMALLINT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SNAPSHOT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SOME</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SOURCE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SPACE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SPECIFIC</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SPECIFICTYPE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SPECIFIC_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SPILL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SPLIT</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SQL</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SQLCODE</td> 
   <td>-</td> 
   <td>-</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SQLERROR</td> 
   <td>-</td> 
   <td>-</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SQLEXCEPTION</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SQLSTATE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SQLWARNING</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STABLE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STANDALONE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>START</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STATE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STATEMENT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STATIC</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STATISTICS</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STDIN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STDOUT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STORAGE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STORE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STORED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STRICT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STRIP</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STRUCTURE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>STYLE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SUBCLASS_ORIGIN</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>SUBLIST</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SUBSTRING</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SUM</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SUPERUSER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SYMMETRIC</td> 
   <td>保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SYNONYM</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SYS_REFCURSOR</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SYSDATE</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SYSID</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SYSTEM</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>SYSTEM_USER</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>SYSTIMESTAMP</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TABLE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TABLES</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TABLESAMPLE</td> 
   <td>函数名或类型名的 关键字</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TABLE_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>TEMP</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TEMPLATE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TEMPORARY</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TERMINATE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TEXT</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>THAN</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>THEN</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TIME</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TIMESTAMP</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TIMESTAMPDIFF</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TIMEZONE_HOUR</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TIMEZONE_MINUTE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TINYINT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TO</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TRAILING</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TRANSACTION</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TRANSACTIONS_COMMITTED</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRANSACTIONS_ROLLED_BACK</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRANSACTION_ACTIVE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRANSFORM</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRANSFORMS</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRANSLATE</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TRANSLATION</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TREAT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRIGGER</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRIGGER_CATALOG</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRIGGER_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRIGGER_SCHEMA</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRIM</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TRUE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>TRUNCATE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TRUSTED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TSFIELD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TSTAG</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TSTIME</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>TYPE</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>TYPES</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UESCAPE</td> 
   <td>-</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNBOUNDED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNCOMMITTED</td> 
   <td>非保留</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>UNDER</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNENCRYPTED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNION</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>UNIQUE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>UNKNOWN</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>UNLIMITED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNLISTEN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNLOCK</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNLOGGED</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNNAMED</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>非保留</td> 
  </tr> 
  <tr> 
   <td>UNNEST</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNTIL</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UNUSABLE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>UPDATE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>UPPER</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>USAGE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>USER</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>USER_DEFINED_TYPE_CATALOG</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>USER_DEFINED_TYPE_NAME</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>USER_DEFINED_TYPE_SCHEMA</td> 
   <td>-</td> 
   <td>非保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>USING</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>VACUUM</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VALID</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VALIDATE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VALIDATION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VALIDATOR</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VALUE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>VALUES</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>VARCHAR</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>VARCHAR2</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VARIABLE</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VARIADIC</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VARYING</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>VERBOSE</td> 
   <td>保留(可以是函数或 类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VERSION</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>VIEW</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>VOLATILE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>WARNING</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>WHEN</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>WHENEVER</td> 
   <td>-</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>WHERE</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>WHITESPACE</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>WINDOW</td> 
   <td>保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>WITH</td> 
   <td>保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>WITHIN</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>WITHOUT</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>WORK</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>WORKLOAD</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>WRAPPER</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>WRITE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>XML</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLATTRIBUTES</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLCONCAT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLELEMENT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLEXISTS</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLFOREST</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLPARSE</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLPI</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLROOT</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>XMLSERIALIZE</td> 
   <td>非保留(不能是函数 或类型)</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>YEAR</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
  <tr> 
   <td>YES</td> 
   <td>非保留</td> 
   <td>-</td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ZONE</td> 
   <td>非保留</td> 
   <td>保留</td> 
   <td>保留</td> 
  </tr> 
 </tbody> 
</table>