title: "VIEW_COLUMN_USAGE (Transact-SQL) | Microsoft Docs" ms.custom: "" ms.date: "03/15/2017" ms.prod: sql ms.prod_service: "database-engine, sql-database, sql-data-warehouse, pdw" ms.reviewer: "" ms.suite: "sql" ms.technology: system-objects ms.tgt_pltfrm: "" ms.topic: "language-reference" f1_keywords:
- "VIEW_COLUMN_USAGE"
- "VIEW_COLUMN_USAGE_TSQL" dev_langs:
- "TSQL" helpviewer_keywords:
- "INFORMATION_SCHEMA.VIEW_COLUMN_USAGE view"
- "VIEW_COLUMN_USAGE view" ms.assetid: fc0b3608-a7e8-4532-8215-32235d6670f1 caps.latest.revision: 38 author: edmacauley ms.author: edmaca manager: craigg monikerRange: ">=aps-pdw-2016||=azuresqldb-current||=azure-sqldw-latest||>=sql-server-2016||=sqlallproducts-allversions||>=sql-server-linux-2017"
[!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. |
System Views (Transact-SQL)
Information Schema Views (Transact-SQL)
sys.sql_dependencies (Transact-SQL)
sys.objects (Transact-SQL)