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Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-01
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ALL_CONSTRAINTS

ALL_CONSTRAINTS describes constraint definitions on tables accessible to the current user.

Related Views

Column Datatype NULL Description
OWNER VARCHAR2(30) NOT NULL Owner of the constraint definition
CONSTRAINT_NAME VARCHAR2(30) NOT NULL Name of the constraint definition
CONSTRAINT_TYPE VARCHAR2(1)
Type of constraint definition:
  • C (check constraint on a table)

  • P (primary key)

  • U (unique key)

  • R (referential integrity)

  • V (with check option, on a view)

  • O (with read only, on a view)

TABLE_NAME VARCHAR2(30) NOT NULL Name associated with the table (or view) with constraint definition
SEARCH_CONDITION LONG
Text of search condition for a check constraint
R_OWNER VARCHAR2(30)
Owner of table referred to in a referential constraint
R_CONSTRAINT_NAME VARCHAR2(30)
Name of the unique constraint definition for referenced table
DELETE_RULE VARCHAR2(9)
Delete rule for a referential constraint (CASCADE or NO ACTION)
STATUS VARCHAR2(8)
Enforcement status of constraint (ENABLED or DISABLED)
DEFERRABLE VARCHAR2(14)
Whether the constraint is deferrable
DEFERRED VARCHAR2(9)
Whether the constraint was initially deferred
VALIDATED VARCHAR2(13)
Whether all data obeys the constraint (VALIDATED or NOT VALIDATED)
GENERATED VARCHAR2(14)
Whether the name of the constraint is user or system generated
BAD VARCHAR2(3)
A YES value indicates that this constraint specifies a century in an ambiguous manner. To avoid errors resulting from this ambiguity, rewrite the constraint using the TO_DATE function with a four-digit year.

See Also: the TO_DATE function in Oracle Database SQL Reference and Oracle Database Application Developer's Guide - Fundamentals

RELY VARCHAR2(4)
Whether an enabled constraint is enforced or unenforced.

See Also: the constraints in Oracle Database SQL Reference

LAST_CHANGE DATE
When the constraint was last enabled or disabled
INDEX_OWNER VARCHAR2(30)
Name of the user owning the index
INDEX_NAME VARCHAR2(30)
Name of the index (only shown for unique and primary-key constraints)
INVALID VARCHAR2(7)
Whether the constraint is invalid
VIEW_RELATED VARCHAR2(14)
Whether the constraint depends on a view