SQL Sub queries in check constraint

SQL Sub queries in check constraint

postgresql foreign-key-relationship plpgsql check-constraints

postgresql

PostgreSQL check constraint for foreign key condition

sql postgresql foreign-keys check-constraints

postgresql

Create DB Constraint via Django

django postgresql check-constraints

postgresql

Trigger vs. check constraint

postgresql database-design triggers postgresql-9.1 check-constraints

postgresql

SQL constraint to prevent updating a column based on its prior value

sql postgresql check-constraints

postgresql

PostgreSQL query for a list of allowed values in a constraint?

sql database postgresql database-design check-constraints

postgresql

NOT NULL constraint on a column when another column has a particular value

postgresql check-constraints

postgresql