Question

I have a little doubt, I want to create a table that had a date that can’t be bigger the 2012/12/31, i searched on google but only had exemples on SELECT. I’m gonna put an example:

 CREATE TABLE example(
 IDExample number (8) primary key,
 DateExample date // Here i want to put that condition, is it possible?
 );

Answer 1

If you’re using SQL Server you can add check contraint on the column in the following way.

ALTER TABLE dbo.example ADD CONSTRAINT CK_DateExample
    CHECK (DateExample < '20130101')

If you’re using Oracle, the syntax is very similar:

ALTER TABLE dbo.example ADD CONSTRAINT CK_DateExample
    CHECK (DateExample < DATE '2013-01-01')