sys.key_constraints (Transact-SQL)
Contains a row for each object that is a primary key or unique constraint. Includes sys.objects.type PK and UQ.
Column name |
Data type |
Description |
|---|---|---|
<Columns inherited from sys.objects> |
|
For a list of columns that this view inherits, see sys.objects (Transact-SQL). |
unique_index_id |
int |
ID of the corresponding unique index in the parent object that was created to enforce this constraint. |
is_system_named |
bit |
1 = Name was generated by system. 0 = Name was supplied by the user. |
Permissions
In SQL Server 2005 and later versions, the visibility of the metadata in catalog views is limited to securables that a user either owns or on which the user has been granted some permission. For more information, see Metadata Visibility Configuration.
See Also