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title: "sys.identity_columns (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.service: "" ms.component: "system-catalog-views" ms.reviewer: "" ms.suite: "sql" ms.technology:

  • "database-engine" ms.tgt_pltfrm: "" ms.topic: "language-reference" f1_keywords:
  • "identity_columns"
  • "sys.identity_columns"
  • "sys.identity_columns_TSQL"
  • "identity_columns_TSQL" dev_langs:
  • "TSQL" helpviewer_keywords:
  • "sys.identity_columns catalog view" ms.assetid: 97ee01e6-9c9e-4fd9-884b-68b4084669d5 caps.latest.revision: 44 author: "edmacauley" ms.author: "edmaca" manager: "craigg" ms.workload: "Inactive" monikerRange: ">= aps-pdw-2016 || = azuresqldb-current || = azure-sqldw-latest || >= sql-server-2016 || = sqlallproducts-allversions"

sys.identity_columns (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2008-all-md]

Contains a row for each column that is an identity column.

The sys.identity_columns view inherits rows from the sys.columns view. The sys.identity_columns view returns the columns in the sys.columns view, plus the seed_value, increment_value, last_value, and is_not_for_replication columns. For more information, see Catalog Views (Transact-SQL).

Column name Data type Description
<columns inherited from sys.columns> The sys.identity_columns view returns all columns in the sys.columns view. It also returns the additional columns described below. For a description of the columns that the sys.identity_columns view inherits from sys.columns, see sys.columns (Transact-SQL).
seed_value sql_variant Seed value for this identity column. The data type of the seed value is the same as the data type of the column itself.
increment_value sql_variant Increment value for this identity column. The data type of the seed value is the same as the data type of the column itself.
last_value sql_variant Last value generated for this identity column. The data type of the seed value is the same as the data type of the column itself.
is_not_for_replication bit Identity column is declared NOT FOR REPLICATION.

Note

To create an automatically incrementing number that can be used in multiple tables or that can be called from applications without referencing any table, see Sequence Numbers.

Permissions

[!INCLUDEssCatViewPerm] For more information, see Metadata Visibility Configuration.

See Also

Object Catalog Views (Transact-SQL)
Catalog Views (Transact-SQL)
Querying the SQL Server System Catalog FAQ