Select statements included within a function cannot return data to a client.

Error Message:
Msg 444, Level 16, State 3, Procedure, Line 6
Select statements included within a function cannot return data to a client.

Severity level:
16.

Description:
This error message appears when you return data from a function via an included SELECT statement inside the function.

Consequences:
The T-SQL statement can be parsed, but causes the error at runtime.

Resolution:
Error of the Severity Level 16 are generated by the user and can be fixed by the SQL Server user. The statement cannot be run this way. You cannot return data to a client via an included SELECT statement.

Versions:
This error message was introduced with SQL Server 2000.

Example(s):
IF OBJECT_ID (‘dbo.t’) IS NOT NULL
    DROP TABLE dbo.t;
GO

CREATE TABLE dbo.t
(
    c1 int PRIMARY KEY
);
GO

IF OBJECT_ID (‘dbo.f’) IS NOT NULL
    DROP FUNCTION dbo.f;
GO

CREATE FUNCTION dbo.f()
RETURNS int
AS
BEGIN
    SELECT 1
END

Remarks:
In the above example we try to return data from the function dbo.f via the SELECT 1 statement. This raises the error.



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One Response to “Select statements included within a function cannot return data to a client.”

  1. USE THE STORED PROCEDURE INSTED OF FUNCTION.

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