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COLUMN_DOMAIN_USAGE (Transact-SQL)

Returns one row for each column in the current database that has an alias data type. This information schema view returns information about the objects to which the current user has permissions.

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

Column name

Data type

Description

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.

TABLE_CATALOG

nvarchar(128)

Table qualifier.

TABLE_SCHEMA

nvarchar(128)

Table owner.

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.

TABLE_NAME

sysname

Table in which the alias data type is used.

COLUMN_NAME

sysname

Column using the alias data type.