检查约束

Question

hi i want add constraint in sql server i try this but not work i needd check if a word 2 char and 3 numbers after example aa192:

create table test(
    idtest int primary key ,
    neEdition varchar(50)
);

alter table test add constraint ch_like check(neEdition like'[a-z][a-z][0-9][0-9][0-9]');

Answer 1

You code works in rextester .

Given what you are doing, I would recommend that the edition be declared to have 5 characters:

neEdition varchar(5)

or:

neEdition char(5)

That is more consistent with the check constraint.