sql stored procedure performance tuning

A stored procedure is a compiled, optimized set of SQL statements placed on the database server, which can be called directly by the application. There are several advantages to using stored procedures:1. Faster execution speed than normal SQL statements2, easy to centralize

developed by SQL server2005 when the stored procedure is compiled for the first time in the cache of the memory process. This solution reflects which index the user wants to use to return the fastest data, it accelerates the performance and speed of statement execution. Now, students may think that if I modify the con

SummaryThis article introduces the basic concepts of stored procedures in SQL Server and how to use stored procedures in Visual Studio. using Stored Procedures in the integrated development environment of. Net to improve the efficiency of application execution, and describes how to optimize the

Tags: ROM parameter close type process lin default Create Tun--Stored procedure (without parameters) Create or Replace procedure stored procedure nameAsvariable, constant declaration;BeginCodeEnd --Stored

statement and clickFirst, the Database design optimization1. Do not use cursors.Using cursors not only takes up memory, but also locks tables in incredible ways, so that all the performance optimizations that DBAs can do are equal to not being done. Each fetch in the cursor is equal to the execution of a select.2. Create an appropriate indexWhenever you add an index to a table, select is faster, and insert and delete are significantly slower because

, the task never expires.Ojobschedule. Schedule. activeenddate = 99991231 no end dateOjobschedule. Schedule. activeendtimeofday = 235959 No End Time Add a task to scheduleOjob. beginalterOjob. jobschedules. Add (ojobschedule)Ojob. doalter The above commands are successfully tested in vfp7, and the newly added commands and running settings are also displayed in SQL Server, but because I use Windows ME, you cannot test whether the task is actually run

a view DROP VIEW [dbo].[View name] GO --------------- --determine if the name of the function to be created exists IF exists(SELECT * fromDbo.sysobjectsWHEREId= object_id(N'[dbo]. [function name]') andXtypeinch(N'FN'N'IF'N'TF')) --Delete a function DROP FUNCTION [dbo].[Name of function] GO IF col_length('Table name','Column Name') is NULL PRINT 'does not exist' SELECT 1 fromsysobjectsWHEREIdinch(SELECTId fromsyscolumnsWHEREName='Column Name') andName='Table name' Reprint: http://www.bitscn.c

Copy Code code as follows: SET ANSI_NULLS on Go SET QUOTED_IDENTIFIER ON Go CREATE PROCEDURE [dbo]. [Pagination] @Page int = 1,--current page number @PageSize int = 10--Number of record bars per page (page size) @Table nvarchar (500)--table name or view name, or even nested sql: (Select * from Tab Where id>1000) tab @Field nvarchar (800) = ' * ',--Returns the recordset field name, "," is sepa

Instance 1: only the stored procedure of a single record set is returned. The content of the bank deposit table (bankMoney) is as follows: IduserIDSexMoney001Zhangsan male 30002Wangwu male 50003Zhangsan male 40 requirement 1: createproceduresp_query_bankMoneyasselect * fromba Instance 1: only the stored procedure of a

Stored Procedures in Transact-SQL are very similar to methods in Java. They can be called repeatedly. After the stored procedure is executed once, you can cache the statements so that the statements in the cache are directly used for the next execution. In this way, the performance