TABLE_CONSTRAINTS View¶
This Information Schema view displays a row for each referential integrity constraint defined for the tables in the specified (or current) database.
For more information about referential integrity constraints, see Constraints.
- See also:
Columns¶
Column Name |
Data Type |
Description |
|---|---|---|
CONSTRAINT_CATALOG |
TEXT |
Database that the constraint belongs to |
CONSTRAINT_SCHEMA |
TEXT |
Schema that the constraint belongs to |
CONSTRAINT_NAME |
TEXT |
Name of the constraint |
TABLE_CATALOG |
TEXT |
Name of the database of the current table |
TABLE_SCHEMA |
TEXT |
Name of the schema of the current table |
TABLE_NAME |
TEXT |
Name of the current table |
CONSTRAINT_TYPE |
TEXT |
Type of the constraint |
IS_DEFERRABLE |
TEXT |
Whether evaluation of the constraint can be deferred |
INITIALLY_DEFERRED |
TEXT |
Whether evaluation of the constraint is deferrable and initially deferred |
ENFORCED |
TEXT |
Whether the constraint is enforced |
COMMENT |
TEXT |
Comment for this constraint |
CREATED |
TIMESTAMP_LTZ |
Creation time of the constraint |
LAST_ALTERED |
TIMESTAMP_LTZ |
Last altered time of the constraint |
RELY |
TEXT |
Whether a constraint in NOVALIDATE mode is taken into account during query rewrite. For details, see Extended Constraint Properties. |
Usage Notes¶
The view only displays objects for which the current role for the session has been granted access privileges.