在mysql中实现字段记录修改时间而不是插入时间

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mysql> create table test(

    -> name varchar(10),

    ->自定义

    -> );

Query OK, 0 rows affected (0.02 sec)

 

mysql>

mysql> insert into test(name ,uptime) values('zhang',now()- 1);

Query OK, 1 row affected (0.01 sec)

 

mysql>

mysql> select * from test ;

+-------+---------------------+

| name  | uptime              |

+-------+---------------------+

| zhang | 2016-02-25 11:30:23 |

+-------+---------------------+

1 row in set (0.00 sec)

 

mysql> update test set name = 'lisi';

Query OK, 1 row affected (0.00 sec)

Rows matched: 1  Changed: 1  Warnings: 0

 

mysql> select * from test ;

+------+---------------------+

| name | uptime              |

+------+---------------------+

| lisi | 2016-02-25 11:30:24 |

+------+---------------------+

1 row in set (0.00 sec)

 

mysql>

mysql> drop table test ;

Query OK, 0 rows affected (0.01 sec)

 

mysql>

mysql>

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