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sys.computed_columns (Transact-SQL)


Applies To: SQL Server 2014, SQL Server 2016 Preview

Contains a row for each column found in sys.columns that is a computed-column.

Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database, Azure SQL Data Warehouse Public Preview.

Column name

Data type


<Inherited columns>


The sys.computed_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.computed_columns view inherits from sys.columns, see sys.columns (Transact-SQL). The value of the is_computed column is always set to 1 in the sys.computer_columns view.



SQL text that defines this computed-column.



1 = The column definition depends on the default collation of the database for correct evaluation; otherwise, 0. Such a dependency prevents changing the database default collation.



Computed column is persisted.

The visibility of the metadata in catalog views is limited to securables that a user either owns or on which the user has been granted some permission. For more information, see Metadata Visibility Configuration.

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