Use when enforcing column or table invariants, validating JSON structure, replacing trigger-based validation, or migrating CHECK constraints from MySQL 8 or PostgreSQL. Prevents the common mistake of relying on app-layer validation, forgetting that NULL passes CHECK, conflating CHECK with NOT NULL,
Use when enforcing column or table invariants, validating JSON structure, replacing trigger-based validation, or migrating CHECK constraints from MySQL 8 or PostgreSQL. Prevents the common mistake of relying on app-layer validation, forgetting that NULL passes CHECK, conflating CHECK with NOT NULL, or expecting CHECK to fire on every UPDATE. Covers column-level CHECK, table-level CHECK, CHECK with