原文:关于MySQL:ERROR 1022 (23000): Can't write; duplicate key in table 'test4'

ERROR :Can twrite duplicatekeyintable test :在为 test 表设置外键时.外键名与已有的外键名重复 代码如下,注意加粗部分 错误代码: mysql gt createtabletest gt idint, gt cp namevarchar , gt constrainttest fkforeignkey cp name referencesstuden ...

2015-08-30 00:44 0 9818 推荐指数:

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[Err] 1022 - Can't write; duplicate key in table '#sql-1500_26'

今天用powerdesigner修改了一些外键关系,有两个外键的名字取一样的,忘记改了。然后在用navicat运行sql文件时,报出[Err] 1022 - Can't write; duplicate key in table '#sql-1500_26'的错误 ...

Sat Nov 16 19:35:00 CST 2013 0 20748
ERROR 1062 (23000): Duplicate entry '1-1' for key 'PRIMARY'

这个错误是说,由于某个SQL操作造成了,表中主键重复。 例子:   create table t(x int,y int,z int, primary key(x,y));   insert into t(x,y,z) values(1,1,0),(1,2,0),(1,3,0 ...

Fri Jul 10 00:48:00 CST 2015 0 2459
 
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