⟩ How To Receive Output Values from Stored Procedures?
If an output parameter is defined in a stored procedure, the execution statement must provide a variable to receive the output value in the format: "@variable_name OUTPUT" or "@parameter_name = @variable_name OUTPUT". The following tutorial exercise gives you a good example:
-- Using @variable format
DECLARE @message VARCHAR(40);
EXECUTE diff_in_days
'01-Jan-2007',
'11-May-2007',
@message OUTPUT;
PRINT @message;
GO
May 11, 2007 - Jan 01, 2007 = 130
-- Using @parameter = @variable format
DECLARE @message VARCHAR(40);
EXEC diff_in_days
@start_date='01-Jan-2007',
@end_date='11-May-2007',
@days = @message OUTPUT;
PRINT @message;
GO
May 11, 2007 - Jan 01, 2007 = 130
