如何在Oracle SQL中制定约束?Oracle检查约束
Create Table A(
b varchar(25) primary key,
c varchar(25),
constraint b_1
check(b='name' and c != 'notallowed')
);
以下应不工作:
Insert into A values('name','notallowed');
但这应该工作:
Insert into A values('notname','notallowed');
如何解决我的约束?
Ver优雅! +1! – Mureinik