Why is my stored procedure so slow?

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The query still ran really slow from a stored procedure. I found another answer here "Parameter Sniffing", Thanks Omnibuzz. Boils down to using "local Variables .SQL Server stored procedure a lot slower than straight querystored procedure become very slow, raw SQL query is still very fastsql server - Query runs fast, but runs slow in stored procedureStored Procedure slower than query in SSMS - sql - Stack OverflowДругие результаты с сайта stackoverflow.com

How do you speed up a slow stored procedure?

1Specify column names instead of using * in SELECT statement. Try to avoid * ... 2Avoid temp temporary table. Temporary tables usually increase a query's complexity. ... 3Create Proper Index. Proper indexing will improve the speed of the operations in the database.4Use Join query instead of sub-query and co-related subquery.

How do I make stored procedures faster?

Improve stored procedure performance in SQL Server1Use SET NOCOUNT ON. ... 2Use fully qualified procedure name. ... 3sp_executesql instead of Execute for dynamic queries. ... 4Using IF EXISTS AND SELECT. ... 5Avoid naming user stored procedure as sp_procedurename. ... 6Use set based queries wherever possible. ... 7Keep transaction short and crisp.

What makes a stored procedure slow?

Storage of Execution Plan – One of the biggest reasons why you are facing slow procedures in SQL Server is probably because your Execution plan is stored in the cache. To find out if it is in the cache, you need to search it there and see if it exists in the top 10 appearing plans.

Do stored procedure run faster?

Stored procedures are precompiled and optimised, which means that the query engine can execute them more rapidly. By contrast, queries in code must be parsed, compiled, and optimised at runtime.

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