mysql alter table drop constraint 报错1064
2016-12-07 11:40
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mysql删除外键方法:
1、不支持直接删除约束:alter table t drop constraint 外键名;
2、只支持分步删除:
a、先删除外键:alter table t drop foreign key 外键名;
b、再删除索引:alter table t drop index 外键名;
1、不支持直接删除约束:alter table t drop constraint 外键名;
2、只支持分步删除:
a、先删除外键:alter table t drop foreign key 外键名;
b、再删除索引:alter table t drop index 外键名;
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