view-column-usage-transact-sql.md

title	VIEW_COLUMN_USAGE (Transact-SQL) | Microsoft Docs
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ms.date	03/15/2017
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VIEW_COLUMN_USAGE (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2008-all_md]

Returns one row for each column in the current database that is used in a view definition. 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
VIEW_CATALOG	nvarchar(128)	View qualifier.
VIEW_SCHEMA	nvarchar(128)	Name of schema that contains the view. ** Important ** 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.
VIEW_NAME	sysname	View name.
TABLE_CATALOG	nvarchar(128)	Table qualifier.
TABLE_SCHEMA	nvarchar(128)	Name of schema that contains the table. ** Important ** 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	Base table.
COLUMN_NAME	sysname	Column name.

See Also

System Views (Transact-SQL)
Information Schema Views (Transact-SQL)
sys.sql_dependencies (Transact-SQL)
sys.objects (Transact-SQL)