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Why SP is faster than query?
“Stored procedures are precompiled and cached so the performance is much better.” This depends on the query, for simple queries it is best written and executed as a query itself.
What is with recompile in SQL Server?
When SQL Server recompiles stored procedures, only the statement that caused the recompilation is compiled, instead of the complete procedure. If certain queries in a procedure regularly use atypical or temporary values, procedure performance can be improved by using the RECOMPILE query hint inside those queries.
What is parameter sniffing in SQL Server?
Parameter sniffing is the process whereby SQL Server creates an optimal plan for a stored procedure by using the calling parameters that are passed the first time a stored procedure is executed. The important point for us is that those parameters passed are used to determine how SQL Server will process the query.
Why is SQL Option ( recompile ) always faster?
I encountered an odd situation where appending OPTION (RECOMPILE) to my query causes it to run in half a second, while omitting it causes the query to take well over five minutes. This is the case when the query is executed from Query Analyzer or from my C# program via SqlCommand.ExecuteReader ().
What’s the difference between adding option and recompile?
Adding OPTION (RECOMPILE) rebuilds the execution plan every time that your query executes. I have never heard that described as creates a new lookup strategy but maybe we are just using different terms for the same thing.
How to enable recompile in SQL Server management studio?
First, let us create a stored procedure that contains the keyword OPTION (RECOMPILE). Now enable the execution plan for your query window in SQL Server Management Studio (SSMS).
Is there a cost to recompile a stored procedure?
Of course, there is an additional cost associated when this stored procedure has been executed every single time as it has to recompile. However, this is when exactly you will have to make a decision considering various different baseline what works for you – better execution plans or cached execution plan.