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sys.sysconstraints (Transact-SQL)

Contains mappings of constraints to the objects that own the constraints within the database.

Important note Important

This SQL Server 2000 system table is included as a view for backward compatibility. We recommend that you use the current SQL Server system views instead. To find the equivalent system view or views, see Mapping SQL Server 2000 System Tables to SQL Server 2005 System Views. This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.

Column name

Data type

Description

constid

int

Constraint number.

id

int

ID of the table that owns the constraint.

colid

smallint

ID of the column on which the constraint is defined.

0 = Table constraint

spare1

tinyint

Reserved

status

int

Pseudo-bit-mask indicating the status. Possible values include the following:

1 = PRIMARY KEY constraint

2 = UNIQUE KEY constraint

3 = FOREIGN KEY constraint

4 = CHECK constraint

5 = DEFAULT constraint

16 = Column-level constraint

32 = Table-level constraint

actions

int

Reserved

error

int

Reserved

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