Foreign Key Constraint in Databases||On DELETE CASCADE || ON DELETE SET NULL
How to assign a foreign Key,
Rules for Referential Integrity,
Deletion Operation with Foreign Key,
On DELETE CASCADE,
ON DELETE SET NULL,
SAFTY CHECKS etc....
How to assign a foreign Key,
Rules for Referential Integrity,
Deletion Operation with Foreign Key,
On DELETE CASCADE,
ON DELETE SET NULL,
SAFTY CHECKS etc....