The term "data integrity" can mean different things to different people, but the most difficult and pervasive problem facing organizations these days is the semantic integrity of the data. As ...

The CHECK constraint limits the value range that can be placed in a column. It ensures only specific values are accepted either on a single column or based on conditions across multiple columns.

-- All the primary key and foreign key constraints are included in the DDL. Other constraints are as follows: ALTER TABLE SCHEDULES ADD CONSTRAINT isAvailableChk CHECK (isAvailable in (0, 1)); ALTER ...