RDB$CHECK CONSTRAINTS

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RDB$CHECK_CONSTRAINTS stores database integrity constraint information for CHECK constraints. In addition, the table stores information for constraints implemented with NOT NULL.

RDB$CHECK_CONSTRAINTS

Column name	Datatype	Length	Description
RDB$CONSTRAINT_NAME	CHAR	67	Subtype 2: Name of a CHECK or NOT NULL constraint
RDB$TRIGGER_NAME	CHAR	67	Subtype 2: Name of the trigger that enforces the CHECK constraint; for a NOT NULL constraint, name of the source column in RDB$RELATION_FIELDS