vastapi.blogg.se - Sql server stored procedure recompile performance

Microsoft does not recommend to use the prefix "sp_" in the user-created stored procedure name, because SQL Server always looks for a stored procedure beginning with "sp_" The prefix "sp_" is used in the system stored procedures names. Don't use the prefix "sp_" in the stored procedure name if you need to create a stored procedure to run in a database other than the master database.Using RETURN statement can boost performance because SQL Server will not create a recordset. Though the RETURN statement is generally used for error checking, you can use this statement to return an integer value for any other reason. The RETURN statement exits unconditionally from a stored procedure, so the statements following RETURN are not executed. Consider returning the integer value as an RETURN statement instead of an integer value as part of a recordset.Which stored procedure you want to run and can boost performance because SQL Server has a better chance to reuse the stored procedures execution plans if they were executed using fully qualified names. Using fully qualified names eliminates any confusion about An object name that specifies all four parts is known as a fully qualified name. The complete name of an object consists of four identifiers: the server name, database name, owner name, and object name. Call stored procedure using its fully qualified name.This can reduce network traffic, because your client will not receive the message indicating the number of rows affected by a Transact-SQL statement.

Include the SET NOCOUNT ON statement into your stored procedures to stop the message indicating the number of rows affected by a Transact-SQL statement.

For example, you can give the users permission to execute the stored procedure to work with the restricted set of the columns and data. Stored procedures can be used to enhance security and conceal underlying data objectsĪlso. This can reduce network traffic, because your client will send to server only stored procedure name (perhaps with some parameters) instead of large heavy-duty queries text.

Use stored procedures instead of heavy-duty queries.

STAT IO which can point you to the right dirrection in very complex queryĤ) Dont use dynamic statement with in SQLĥ) Dont use DDL operation like adding or altering a colunm for temptable I can say some important point which can degrade the performance of store procedureġ) Dont implement ROW BY ROW(cursor Approach) which increase the execution time, always try to use Set based approach as possibleĢ) Dont use multi-line function which could be a black box in your execution planģ) Dont consider Execution plan alone when you are performance turning, consider Choose the highest (relative to the batch) execution query(subtree cost), start from thereġ) look for Bookmark lookup - can be eliminated by adding the extra column in INCLUDE clause of the non-clustered index usedĤ) look for any sort operation that can be eliminated by adding index(before nester-loop)