Comments on: SQL Server Parameter Sniffing https://www.dbrnd.com/2015/05/sql-server-parameter-sniffing/ BIGData | NoSQL | MSSQL | MySQL | PostgreSQL Thu, 15 Feb 2018 15:48:48 +0000 hourly 1 https://wordpress.org/?v=7.0.4 By: Chris https://www.dbrnd.com/2015/05/sql-server-parameter-sniffing/#comment-6230 Thu, 15 Feb 2018 15:48:48 +0000 https://www.dbrnd.com/?p=215#comment-6230 I recently had a stored procedure where ‘with recompile’ and ‘Optimize For’ did not work but using local (dummy) parameters did. Sort of SQL Server 2005 methodology that worked best in my situation on a SQL Server 2016 instance.

Example:

CREATE PROCEDURE dbo.usp_EmployeeData
(
@EmpID INT
)
AS

DECLARE @localEmpID INT = @EmpID;

SELECT EmployeName, EmployeeDOB, EmployeeClass
FROM dbo.tbl_EmployeeDetails
WHERE EmpID = @localEmpID

GO

]]> By: Anvesh Patel https://www.dbrnd.com/2015/05/sql-server-parameter-sniffing/#comment-4440 Fri, 08 Apr 2016 14:15:35 +0000 https://www.dbrnd.com/?p=215#comment-4440 Thanks Amit, for your input.

]]> By: amit bansal https://www.dbrnd.com/2015/05/sql-server-parameter-sniffing/#comment-4439 Fri, 08 Apr 2016 10:29:49 +0000 https://www.dbrnd.com/?p=215#comment-4439 Just happen to come across the post and gave a quick read. You are missing an important point that the optimizer sniffs the parameter value nd creates a plan optimized for that value, which gets reused subsequently. Good effort though…

]]> By: Anvesh Patel https://www.dbrnd.com/2015/05/sql-server-parameter-sniffing/#comment-2092 Thu, 04 Feb 2016 04:27:00 +0000 https://www.dbrnd.com/?p=215#comment-2092 Oky thanks Yogesh, I will check.

]]> By: Yogesh Shind https://www.dbrnd.com/2015/05/sql-server-parameter-sniffing/#comment-2091 Thu, 04 Feb 2016 04:24:32 +0000 https://www.dbrnd.com/?p=215#comment-2091 I think there is one more way to avoid it. You can declare variable inside and assign the variable of SP to these variables

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