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SQL 语句设置自动增量值
Home Database Mysql Tutorial 设置MySQL数据表auto increment值

设置MySQL数据表auto increment值

Jun 07, 2016 pm 04:37 PM
auto mysql data sheet set up

今天遇到一个奇怪的问题,在PHPMyAdmin的操作 表选项 没有AUTO_INCREMENT 这个选项。 经过一系列的调试,原来发现是 PHPMyadmin 4.0.2 的bug。升级到 PHPMyAdmin 4.0.3 以后这个解决了。 下载的 PHPMyAdmin 4.0.3 版本中,可以非常简单的设置一个表的自增ID

今天遇到一个奇怪的问题,在PHPMyAdmin的操作 > 表选项 没有AUTO_INCREMENT 这个选项。

经过一系列的调试,原来发现是PHPMyadmin 4.0.2 的bug。升级到PHPMyAdmin 4.0.3 以后这个解决了。

下载的PHPMyAdmin 4.0.3 版本中,可以非常简单的设置一个表的自增ID值,如下图:

mysql-setting-autoincrement-phpmyadmin 重设MySQL数据表auto increment值

如果你发现正在使用的PHPMyAdmin 版本无法设置 AUTO_INCREMENT 这个选项,那赶紧升级到最新版或者找一个其他合适的版本来使用。

SQL 语句设置自动增量值

下面的示例将表名为“mytable”的自动增量值设置为500,这意味着,下一次你插入一条新的记录到这个表中时,自动增量主键值为500。

如果数据库中字段的最高值已经大于500,那么自动增量ID值将被设置为最高的值加1。

ALTER TABLE mytable AUTO_INCREMENT = 500
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请修改 mytable 为你的数据表名称,500修改为你需要的增量值。
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