阅读背景:

即使设置了主键约束,SQL表继承也会在基表中导致重复记录

来源:互联网 

I have a problem where lets say I have a people table that is inherited by a student table and a teacher table. if I do an INSERT INTO student and an INSERT INTO teacher and specify the primary key of the people table (P_Id) for exampleI have a problem where lets say I have a people




你的当前访问异常,请进行认证后继续阅读剩余内容。

分享到: