mysql修改数据表自增步长

Posted 2020-08-19 大道至简

可以修改系统变量 auto_increment_increment

mysql> SHOW VARIABLES LIKE ‘auto_inc%‘;   
+--------------------------+-------+
| Variable_name            | Value |
+--------------------------+-------+
| auto_increment_increment | 1     |   //查看步长
| auto_increment_offset    | 1     |
+--------------------------+-------+

2 rows in set (0.00 sec)

mysql> SET @@auto_increment_increment=10;  //设置步长
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW VARIABLES LIKE ‘auto_inc%‘;
+--------------------------+-------+
| Variable_name            | Value |
+--------------------------+-------+
| auto_increment_increment | 10    |     //已设置为10
| auto_increment_offset    | 1     |
+--------------------------+-------+
2 rows in set (0.01 sec)

数据表自增将以10为间隔自增