MySQL数据表操作-查询方法汇总（SELECT）

叁歲伎倆 2022-11-09 11:25 217阅读 0赞

查询数据是指从数据库中根据需求，使用不同的查询方式来获取不同的数据，是使用频率最高、最重要的操作，在 `MySQL`中，可以使用 `SELECT` 语句来查询数据。

**语法格式**

SELECT
    {* | <字段列名>}
    [
    FROM <表 1>, <表 2>…
    [WHERE <表达式>
    [GROUP BY <group by definition>
    [HAVING <expression> [{<operator> <expression>}…]]
    [ORDER BY <order by definition>]
    [LIMIT[<offset>,] <row count>]
    ]

其中，各条子句的含义如下：

*  `{*|<字段列名>}`包含星号通配符的字段列表，表示所要查询字段的名称。
 *  `<表 1>，<表 2>…`，表 1 和表 2 表示查询数据的来源，可以是单个或多个。
 *  `WHERE <表达式>`是可选项，如果选择该项，将限定查询数据必须满足该查询条件。
 *  `GROUP BY< 字段 >`，该子句告诉 MySQL 如何显示查询出来的数据，并按照指定的字段分组。
 *  `[ORDER BY< 字段 >]`，该子句告诉 MySQL 按什么样的顺序显示查询出来的数据，可以进行的排序有升序（ASC）和降序（DESC），默认情况下是升序。
 *  `[LIMIT[<offset>，]<row count>]`，该子句告诉 MySQL 每次显示查询出来的数据条数。

## 查看表中所有字段 - desc ##

mysql> desc info;
    +--------+-------------+------+-----+---------+-------+
    | Field  | Type        | Null | Key | Default | Extra |
    +--------+-------------+------+-----+---------+-------+
    | id     | int(11)     | NO   |     | NULL    |       |
    | name   | varchar(20) | YES  |     | NULL    |       |
    | age    | int(11)     | YES  |     | NULL    |       |
    | gender | char(1)     | YES  |     | NULL    |       |
    | tid    | int(11)     | YES  | UNI | NULL    |       |
    +--------+-------------+------+-----+---------+-------+
    5 rows in set (0.00 sec)

## 查询表中所有字段 ##

# 使用“*”通配符查询
    SELECT * FROM < 表名 >;
    
    mysql> select * from info;
    +----+------+------+--------+------+
    | id | name | age  | gender | tid  |
    +----+------+------+--------+------+
    |  1 | HW   |   20 | M      |    8 |
    |  2 | test |   15 | W      |    9 |
    |  3 | ming |   21 | M      |   19 |
    +----+------+------+--------+------+
    3 rows in set (0.00 sec)
    
    
    # 使用所有字段查询
    mysql> select id, name, age, gender, tid from info;
    +----+------+------+--------+------+
    | id | name | age  | gender | tid  |
    +----+------+------+--------+------+
    |  1 | HW   |   20 | M      |    8 |
    |  2 | test |   15 | W      |    9 |
    |  3 | ming |   21 | M      |   19 |
    +----+------+------+--------+------+
    3 rows in set (0.00 sec)

## 查询指定字段 ##

SELECT < 列名 > FROM < 表名 >;
    
    mysql> select id, name, age from info;
    +----+------+------+
    | id | name | age  |
    +----+------+------+
    |  1 | HW   |   20 |
    |  2 | test |   15 |
    |  3 | ming |   21 |
    +----+------+------+
    3 rows in set (0.00 sec)

## 去重，使用`DISTINCT`过滤重复数据 ##

mysql> select id,name,age from info;
    +----+------+------+
    | id | name | age  |
    +----+------+------+
    |  1 | HW   |   20 |
    |  2 | test |   15 |
    |  3 | ming |   21 |
    |  3 | ming |   21 |
    |  4 | ming |   21 |
    +----+------+------+
    5 rows in set (0.00 sec)
    
    mysql> select distinct id,name,age from info;
    +----+------+------+
    | id | name | age  |
    +----+------+------+
    |  1 | HW   |   20 |
    |  2 | test |   15 |
    |  3 | ming |   21 |
    |  4 | ming |   21 |
    +----+------+------+
    4 rows in set (0.00 sec)

## 为表或字段进行设置别名 - as ##

注意：

*  表的别名不能与该数据库的其它表同名。字段的别名不能与该表的其它字段同名。
 *  表别名只在执行查询时使用，并不在返回结果中显示。而字段定义别名之后，会返回给客户端显示，显示的字段为字段的别名。

# 为表指定别名
    mysql> select id, t_year, t_time from test_time as tt;
    +----+--------+----------+
    | id | t_year | t_time   |
    +----+--------+----------+
    |  1 |   2019 | 12:12:12 |
    |  2 |   2018 | 13:13:13 |
    |  3 |   2017 | 17:17:17 |
    |  4 |   2020 | 12:12:12 |
    |  5 |   2020 | 12:12:12 |
    |  6 |   2017 | 17:17:17 |
    |  7 |   2020 | 12:12:12 |
    |  8 |   2021 | 12:12:12 |
    |  9 |   2021 | 12:12:12 |
    | 10 |   2021 | 12:12:12 |
    | 11 |   2021 | 12:12:12 |
    | 12 |   2021 | 12:12:12 |
    | 13 |   2021 | 12:12:12 |
    | 14 |   2021 | 12:12:12 |
    | 15 |   2021 | 12:12:12 |
    +----+--------+----------+
    15 rows in set (0.00 sec)
    
    # 为字段指定别名
    mysql> select id, t_year as YEAR, t_time AS Time, t_date as Date from test_time;
    +----+------+----------+------------+
    | id | YEAR | Time     | Date       |
    +----+------+----------+------------+
    |  1 | 2019 | 12:12:12 | 2019-11-11 |
    |  2 | 2018 | 13:13:13 | 2019-11-11 |
    |  3 | 2017 | 17:17:17 | 2019-11-11 |
    |  4 | 2020 | 12:12:12 | 2020-02-02 |
    |  5 | 2020 | 12:12:12 | 2020-02-02 |
    |  6 | 2017 | 17:17:17 | 2019-11-11 |
    |  7 | 2020 | 12:12:12 | 2020-03-03 |
    |  8 | 2021 | 12:12:12 | 2020-02-02 |
    |  9 | 2021 | 12:12:12 | 2020-02-02 |
    | 10 | 2021 | 12:12:12 | 2020-02-02 |
    | 11 | 2021 | 12:12:12 | 2020-02-02 |
    | 12 | 2021 | 12:12:12 | 2020-02-02 |
    | 13 | 2021 | 12:12:12 | 2020-02-02 |
    | 14 | 2021 | 12:12:12 | 2020-02-02 |
    | 15 | 2021 | 12:12:12 | 2020-02-02 |
    +----+------+----------+------------+
    15 rows in set (0.00 sec)

## 限制查询结果的条数 - limit ##

LIMIT 关键字可以用来限制查询结果返回的条数，可指定查询结果从哪条记录开始显示，一共显示了多少条记录。

LIMIT 关键字有 3 种使用方式，即指定初始位置、不指定初始位置以及与 OFFSET 组合使用。

**指定初始位置**

*  语法：`LIMIT 初始位置，记录数`，LIMIT 后的两个参数必须都是`正整数`
 *  “初始位置”表示从哪条记录开始显示；“记录数”表示显示记录的条数。
 *  第一条记录的位置是 0，第二条记录的位置是 1。后面的记录依次类推直到记录数为条数。

mysql> select * from test_time ;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    |  1 |   2019 | 12:12:12 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  2 |   2018 | 13:13:13 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  4 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  5 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  6 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  7 |   2020 | 12:12:12 | 2020-03-03 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  8 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-06 18:16:18 | 2019-09-09 12:12:12 |
    |  9 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-07 18:17:18 | 2019-09-09 12:12:12 |
    | 10 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 18:18:18 | 2019-09-09 12:12:12 |
    | 11 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2019-09-09 12:12:12 |
    | 12 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:11:42 |
    | 13 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:12:16 |
    | 14 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:14:04 |
    | 15 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | NULL                |
    +----+--------+----------+------------+---------------------+---------------------+
    15 rows in set (0.00 sec)
    
    mysql> select * from test_time limit 2,7;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  4 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  5 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  6 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  7 |   2020 | 12:12:12 | 2020-03-03 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  8 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-06 18:16:18 | 2019-09-09 12:12:12 |
    |  9 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-07 18:17:18 | 2019-09-09 12:12:12 |
    +----+--------+----------+------------+---------------------+---------------------+
    7 rows in set (0.00 sec)
    
    id=3：从0开始的第二行
    id=9：从id=3之后的6个记录，一共7条数据

**不指定初始位置**

*  语法：`LIMIT 记录数`，“记录数”表示显示记录的条数。可认为初始位置为0。
 *  如果“记录数”的值小于查询结果的总数，则会从第一条记录开始，显示指定条数的记录。
 *  如果“记录数”的值大于查询结果的总数，则会直接显示查询出来的所有记录。

mysql> select * from test_time limit 3;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    |  1 |   2019 | 12:12:12 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  2 |   2018 | 13:13:13 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    +----+--------+----------+------------+---------------------+---------------------+
    3 rows in set (0.00 sec)

**LIMIT和OFFSET组合使用**

*  语法：`LIMIT 记录数 OFFSET 初始位置`，“初始位置”指定从哪条记录开始显示；“记录数”表示显示记录的条数。
 *  和`指定初始位置`基本一致，只是写法不同

# 从2开始，3条数据，注意数据从第0行开始生效
    mysql> select * from test_time limit 3 offset 2;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  4 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  5 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    +----+--------+----------+------------+---------------------+---------------------+
    3 rows in set (0.00 sec)

## 查询结果排序 - order by ##

*  语法：`ORDER BY <字段名> [ASC|DESC]`
 *  `ASC`表示字段按升序排序，`ASC`为默认值
 *  `DESC`表示字段按降序排序
 *  ORDER BY 关键字后可以跟子查询
 *  当排序的字段中存在空值时，ORDER BY 会将该空值作为最小值来对待
 *  ORDER BY 指定多个字段进行排序时，会按照字段的顺序从左到右依次进行排序

**单字段排序**

# 单字段排序，默认正序
    mysql> select * from test_time order by id;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    |  1 |   2019 | 12:12:12 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  2 |   2018 | 13:13:13 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  4 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  5 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  6 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  7 |   2020 | 12:12:12 | 2020-03-03 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  8 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-06 18:16:18 | 2019-09-09 12:12:12 |
    |  9 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-07 18:17:18 | 2019-09-09 12:12:12 |
    | 10 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 18:18:18 | 2019-09-09 12:12:12 |
    | 11 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2019-09-09 12:12:12 |
    | 12 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:11:42 |
    | 13 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:12:16 |
    | 14 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:14:04 |
    | 15 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | NULL                |
    +----+--------+----------+------------+---------------------+---------------------+
    15 rows in set (0.00 sec)
    
    # 单字段排序，正序
    mysql> select * from test_time order by id asc;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    |  1 |   2019 | 12:12:12 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  2 |   2018 | 13:13:13 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  4 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  5 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  6 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  7 |   2020 | 12:12:12 | 2020-03-03 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  8 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-06 18:16:18 | 2019-09-09 12:12:12 |
    |  9 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-07 18:17:18 | 2019-09-09 12:12:12 |
    | 10 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 18:18:18 | 2019-09-09 12:12:12 |
    | 11 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2019-09-09 12:12:12 |
    | 12 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:11:42 |
    | 13 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:12:16 |
    | 14 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:14:04 |
    | 15 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | NULL                |
    +----+--------+----------+------------+---------------------+---------------------+
    15 rows in set (0.00 sec)
    
    # 单字段排序，逆序
    mysql> select * from test_time order by id desc;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    | 15 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | NULL                |
    | 14 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:14:04 |
    | 13 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:12:16 |
    | 12 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:11:42 |
    | 11 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2019-09-09 12:12:12 |
    | 10 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 18:18:18 | 2019-09-09 12:12:12 |
    |  9 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-07 18:17:18 | 2019-09-09 12:12:12 |
    |  8 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-06 18:16:18 | 2019-09-09 12:12:12 |
    |  7 |   2020 | 12:12:12 | 2020-03-03 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  6 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  5 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  4 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  2 |   2018 | 13:13:13 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  1 |   2019 | 12:12:12 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    +----+--------+----------+------------+---------------------+---------------------+
    15 rows in set (0.00 sec)

**多字段排序**

> 对多个字段进行排序时，排序的第一个字段必须有相同的值，才会对第二个字段进行排序。如果第一个字段数据中所有的值都是唯一的，MySQL 将不再对第二个字段进行排序

mysql> select * from test_time order by t_year desc, id asc;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    |  8 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-06 18:16:18 | 2019-09-09 12:12:12 |
    |  9 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-07 18:17:18 | 2019-09-09 12:12:12 |
    | 10 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 18:18:18 | 2019-09-09 12:12:12 |
    | 11 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2019-09-09 12:12:12 |
    | 12 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:11:42 |
    | 13 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:12:16 |
    | 14 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:14:04 |
    | 15 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | NULL                |
    |  4 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  5 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  7 |   2020 | 12:12:12 | 2020-03-03 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  1 |   2019 | 12:12:12 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  2 |   2018 | 13:13:13 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  6 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    +----+--------+----------+------------+---------------------+---------------------+
    15 rows in set (0.00 sec)
    
    # 第一个字段都是唯一值，不会对第二个字段进行排序
    mysql> select * from test_time order by id desc, id asc;
    +----+--------+----------+------------+---------------------+---------------------+
    | id | t_year | t_time   | t_date     | t_datetime          | t_timestamp         |
    +----+--------+----------+------------+---------------------+---------------------+
    | 15 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | NULL                |
    | 14 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:14:04 |
    | 13 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:12:16 |
    | 12 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2021-01-07 06:11:42 |
    | 11 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 19:19:19 | 2019-09-09 12:12:12 |
    | 10 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-08 18:18:18 | 2019-09-09 12:12:12 |
    |  9 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-07 18:17:18 | 2019-09-09 12:12:12 |
    |  8 |   2021 | 12:12:12 | 2020-02-02 | 2008-08-06 18:16:18 | 2019-09-09 12:12:12 |
    |  7 |   2020 | 12:12:12 | 2020-03-03 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  6 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  5 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  4 |   2020 | 12:12:12 | 2020-02-02 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  3 |   2017 | 17:17:17 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  2 |   2018 | 13:13:13 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    |  1 |   2019 | 12:12:12 | 2019-11-11 | 2019-10-10 15:15:15 | 2019-09-09 12:12:12 |
    +----+--------+----------+------------+---------------------+---------------------+
    15 rows in set (0.00 sec)