December 2013
Intermediate to advanced
1872 pages
153h 31m
English
book
Microsoft® SQL Server 2012 Unleashed
by Ray Rankins, Paul T. Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2012 Unleashed
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Using Output Parameters
If a calling batch passes a variable as a parameter to a stored procedure and that parameter is modified inside the procedure, the modifications are not passed to the calling batch unless you specify the OUTPUT keyword for the parameter when executing the stored procedure.
If you want a procedure to be able to pass parameter values out from the procedure, you need to use the keyword OUTPUT when creating the procedure. The following example shows a stored procedure that accepts two parameters, one of which is used as an output parameter:
IF EXISTS ( SELECT * FROM sys.procedures WHERE schema_id= schema_id('dbo') AND name = N'product_sales') DROP PROCEDURE dbo.product_sales ...
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