sys.computed_columns (Transact-SQL)

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW)

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

Column name Data type Description
<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.computed_columns view.
definition nvarchar(max) SQL text that defines this computed-column.
uses_database_collation bit 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.
is_persisted bit 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.

See Also

Object Catalog Views (Transact-SQL)
Catalog Views (Transact-SQL)