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IDENTITY function [Miscellaneous]

Generates integer values, starting at 1, for each successive row in a query. Its implementation is identical to that of the NUMBER function.

IDENTITY( expression )

expression    An expression. The expression is parsed, but is ignored during the execution of the function.

For a description of how to use the IDENTITY function, see NUMBER function [Miscellaneous].

• NUMBER function [Miscellaneous]

• SQL/2003    Transact-SQL extension.

The following statement returns a sequentially-numbered list of employees.

SELECT IDENTITY( 10 ), Surname FROM Employees;