table_constraints

table_constraints describes which tables have constraints.

The following fields are provided in table_constraints:

Field	Description
CONSTRAINT_CATALOG	The name of the catalog to which the constraint belongs. This value is always def.
CONSTRAINT_SCHEMA	The name of the database to which the constraint belongs.
CONSTRAINT_NAME	The name of the constraint.
TABLE_SCHEMA	The name of the database to which the table belongs.
TABLE_NAME	The name of the table.
CONSTRAINT_TYPE	The type of constraint.