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DOMAIN_CONSTRAINTS (Transact-SQL)

Returns one row for each alias data type in the current database that has a rule bound to it and that can be accessed by current user.

To retrieve information from these views, specify the fully qualified name of INFORMATION_SCHEMA.view_name.

Column name

Data type

Description

CONSTRAINT_CATALOG

nvarchar(128)

Database in which the rule exists.

CONSTRAINT_SCHEMA

nvarchar(128)

Name of schema that contains the constraint.

Important noteImportant
Do not use INFORMATION_SCHEMA views to determine the schema of an object. The only reliable way to find the schema of a object is to query the sys.objects catalog view.

CONSTRAINT_NAME

sysname

Rule name.

DOMAIN_CATALOG

nvarchar(128)

Database in which the alias data type exists.

DOMAIN_SCHEMA

nvarchar(128)

Name of schema that contains the alias data type.

Important noteImportant
Do not use INFORMATION_SCHEMA views to determine the schema of a data type. The only reliable way to find the schema of a type is to use the TYPEPROPERTY function.

DOMAIN_NAME

sysname

Alias data type.

IS_DEFERRABLE

varchar(2)

Specifies whether constraint checking is deferrable. Always returns NO.

INITIALLY_DEFERRED

varchar(2)

Specifies whether constraint checking is at first deferred. Always returns NO.

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