Question

I am writing a SP in SQL server

ALTER PROCEDURE [dbo].[spAddUserBadge]
AS
BEGIN
    INSERT INTO dbo.SE_UserBadge
    (    
        [UID],
        BadgeID,
        BadgeAssignmentOrRenewalDate,
        BadgeExpiryDate ,
        AmountPaid, 
        Remarks ,
        AssignedBy          
    )
    VALUES
    (
        17,1, 12-12-2012, 12-12-2013, 0.00, '', ''
    )

    SELECT SCOPE_IDENTITY() AS id    
END
GO

SCOPE_IDENTITY is coming as NULL. where I am wrong?

Answer 1

The scope_identity will only return a value if there is a identity field, check you have an identity field.

Unfortunately, you cannot alter an existing column to be an identity field using sql. To do this, you have to create a new column using something like ALTER TABLE dbo.SE_UserBadge ADD column name INT IDENTITY(1,1). Then you have to transfer any existing values using IDENTITY_INSERT dbo.SE_UserBadge ON with an update statement. Then you can drop the old column.

Or you can use designer view in SSMS if the table isn’t too large.