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Stored Procedures | optimizing Stored Procedure (stored procedure) authoring experience and optimization measures First, preface: After a period of storage process development, write down some of the development of the summary an
procedure for implementing this function is as follows: /* SP4 */Create procedure DBO. GetUserName@ Userid int,@ Username varchar (40) OutputAsSet nocount onBeginIf @ userid is null returnSelect @ username = UsernameFrom DBO. [userinfo]{ Diggit (507302,19247, 1) } "> 0 { Diggit (507302,19247, 1) } "> 1. Suitable for readers: Database developers, who have a large amount of data in the database, involve proj
Objective During the development of the database, the complex business logic and the operation of the database are often encountered, and the stored procedures are used to encapsulate the database operations. If the project has more stored procedures, writing and there is no specification, will affect the future system maintenance difficulties and large stored p
measures from: Web Teaching Network 1. Suitable for readers: database developers, who have a large amount of data in the database and who are interested in optimizing the SP (stored procedure. II. Introduction: complex business logic and database operations are often encountered during database development. In this case, SP is used to encapsulate database operations. If there are many SP projects and t
Call View, stored Procedure, and hibernateprocedure of Hibernate Optimization Technology Preface Reprinted please indicate the source: Small (http://blog.csdn.net/wlwlwlwl015/article/details/42705585), it is mainly in the object navigation for us to optimize HQL. This blog will introduce some universal optimization
SQL Server focuses on optimization of Stored Procedure performance, data compression, and page compression to improve IO performance (I ). Preface The SQL Server basic series is not over yet, And the last point is not written, and will continue later. Some school friends asked me when I began to write the SQL Server performance series. It may take some time to wa
Stored Procedures | optimizing First, preface: After a period of storage process development, write down some of the development of the summary and experience to share with you, hope for everyone's benefit, mainly for Sybase and SQL Server database, but other databases should have some commonality. Second, suitable for the reader object: Database development programmer, database data volume, involving the SP (sto
I. Preface: After a period of storage process development, I wrote some summary and experience during development to share with you. I hope it will be helpful to you, mainly for Sybase and SQL Server databases, however, other databases should have some commonalities. Ii. target readers: Database developers, who have a large amount of data in the database, involve project developers who are interested in SP (Stored
I. Preface: after a period of storage process development, I wrote some summary and experiences for development and shared them with you. I hope they will be helpful to you, it is mainly for Sybase and SQL Server databases, but other databases should have some commonalities.Ii. target readers: Database DevelopmentProgramStaff, there are a lot of data in the database, involving project developers who are interested in optimizing the SP (stored
were queried.After careful analysis, we have just started the stored procedure to insert three tables of data into a temporary table and then do the processing.After the query found that three tables each table has more than 7 million rows of data, the associated fields of each table is the primary key, and the first table has been used for the time period to worry about, that is, only query the first tabl
not deleted during the creation of the new index until the new index rebuild successfully. From this you can know that rebuild than the removal of a reconstruction of the benefits of the original SQL query will not affect, but also because of this, the rebuild way to build an index requires that the corresponding table space free space is twice times the deletion of the reconstruction method. There are several ways to rebuild an indexStored procedures://////////////////////////////////////////C
Label:After the field colleagues reflect, they use a good XML export tool has been error, often reported the database connection time-out, view the database has been found to have more than 100G space. However, the data stored in the export process only 1000 data per time, near the manager said there is time to filter should not cause problems. Pull the stored procedure
During the development of the database, the complex business logic and the operation of the database are often encountered, and the SP is used to encapsulate the database operation. If there are more SPS in the project, writing and there is no specification, will affect the future system maintenance difficulties and large SP logic is difficult to understand, in addition, if the data volume of the database or the performance requirements of the SP is very high, you will encounter
1. Use Set NOCOUNT (after setting "message" less affected rows, reduce network traffic)SET NOCOUNT onGoSQL statementsSET NOCOUNT OFFGo2. Using a defined SchemaExample: SELECT * from Dbo.table is better than select * FROM table performanceIf a table is my.table, then the direct query color SELECT * FROM table will be error-3. The stored procedure should not start with "sp_" because this is the beginning of t
; ------------------------------------------------------------------------------------------------------------- ---------------------- /*--old 2018-06-12insert into @tab_xmxkxx SELECT DISTINCT CONVERT (NVARCHAR (), GETDATE (),) as JHRQ, SGXKDW XX.WSSLBH as WSSLBH, Xmxkxx.xmmc as XMMC, SGXKDWXX.DWMC as ZBDWMC, CONVERT (NVARCHAR), xmxkxx.sdrq,1 As HFXKZRQ, XMXKXX.FZDWMC as HFXKZBM from [Sgxk]. [TAB_ZBB_XMXKXX_DWXX] As Sgxkdwxx left JOIN sgxk.tab_zbb_xmxkxx xmxkxx on xmxkxx.bjbh COLLATE chinese_p
MySQL stored procedure details mysql stored procedure and mysql stored procedure details Mysql stored procedure details 1.
Database Stored Procedure (procedure), stored Procedure procedureAdvantages of a stored procedure: System stored procedures Custom
Mysql Stored Procedure learning notes-create a simple stored procedure, mysql Stored Procedure I. Stored Procedure
The instance parses the MySQL stored procedure and the calling method of the stored procedure, and the mysql Stored Procedure Mysql added the stored
MySQL Stored Procedure programming is a complex topic. In this chapter, we will provide you with the content to complete basic tasks, including: 1. How to Create a stored procedure 2. How to input and output stored procedures 3. How to interact with the database 4. How to Us
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