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.

Column name Data type 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