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mysql某列的默认值替另一列,有办法么>
- WBOYOriginal
- 2016-06-13 13:24:541026browse
mysql某列的默认值为另一列,有办法么>
ip varchar(20),
name vachar(20)
我现在要使insert语句没有给出name的值时就填入ip的值,也就是NOT NULL DEFAULT VALUE怎么写,有这个办法吗
------解决方案--------------------
为什么不能程序处理呢，在插入前处理数据？
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