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Tags: ATI latest sel Opening technical file reference tis onlineNow has been doing the project, the amount of data is relatively small, at the beginning of the time did not feel, because it is just beginning, the amount of data is very small, in the process of the use of speed is very fast, but with the constant growth of data volume, found that the program is more and more slow, even the problem of timeouts, so to the program Early project is relatively tight, not for the Big Data volume busine
too early to die. The understanding of the SQL Server framework mainly comes from this book. Unfortunately, there is no Chinese version. 5. The second book on performance tuning that comes into contact with SQL Server 2008 Kernel
this query statement, our hint (Hints) may not be single.Let's see how this can be guided in such a way. Let's look at a simple example:SELECT o.orderidfrom Customers C JOIN Orders ojoin Employees EON o.employeeid=E.employeeidon c.customerid =o.customeridwhere c.city=n'London' and e.city=n'London ' OPTION (Force Order,hash JOIN)Not only that, we can also write query plans manually for query statements.That is, we write our own XML query plan, let T-SQL
, using Microsoft's previous case library (Northwind) for analysis, part of the content will also be applied to another Microsoft Case Library AdventureWorks Trust the Friends of SQL Server, both libraries are not too unfamiliar. Conceptual understanding The so-called indexes, like other types of data pages in SQL Server
Label:Original: SQL Server Tuning Series advanced (in-depth profiling statistics)ObjectiveAfter the analysis of the previous few, in fact, in general has been the first glimpse of the importance of SQL Server statistics, so this article will be sacrificed this artifact.This
analysis, part of the content will also be applied to another Microsoft Case Library AdventureWorksTrust the Friends of SQL Server, both libraries are not too unfamiliar.Conceptual understandingThe so-called indexes, like other types of data pages in SQL Server, are fixed 8KB (8192 bytes), stored in the same b-tree st
ObjectiveAfter the analysis of the previous few, in fact, in general has been the first glimpse of the importance of SQL Server statistics, so this article will be sacrificed this artifact.This content will be very long, sit good bench, melon seeds snacks and so on ...No nonsense, go to the chase.Technical preparationThe database version is SQL SERVER2008R2, whic
Chapter 2 procedural performance tuning of PL/SQL applications I. Reasons for PL/SQL Performance problems When the execution efficiency of PL/SQL-based applications is low, it is usually caused by poor
we write statements, we need to understand and master them so that we can write efficient T-SQL statements.Reference documents Microsoft Books Online logical operators and physical operator references Refer to the book SQL. server.2005. Technical Insider "series ConclusionThis article is a bit long,
Author: (US) Tony Andrews Translator: Chen Yong Yang Health Series name: Chapter Hua programmer library Publishing House: Machinery Industry Publishing House ISBN: 9787111425021 shelving time: -6-4 published on: July 4,: 16 webpage: 86 versions: 1-1 category: more about computers> DB2 SQL Performance Tuning tips computer book
Although the WebLogic version has now been upgraded to 10.3 and is packaged as Oracle Funsion middleware 11g, the new data is relatively small, sharing a WebLogic Classic version 8.1 performance tuning article. --------------------------------------------------------------------------------------------------------------- ---- Any successful product in the market has good
Label:SQL Server Related Books SQLSERVER2012 Implementation and Management Guide SQL Server 2008 Learning notes: Daily maintenance, in-depth management, performance optimization SQL Serv
IIS Performance Tuning 1. Adjust the IIS cache The range of HKEY_LOCAL_MACHINE Systemcurrentcontrolsetservicesinetinfoparametersmemorycachesize Memorycachesize is from 0 4GB, The default value is 3072000 (3MB). In general, this value should be set to 10% of the server memory. IIS improves system performance by cachin
Original: 2-year summary of SQL Server DBA tuning2 years SQL Server DBA Summary of tuningWhen I was 2 DBA I felt that there was something that needed to be shared with everyone to discuss the book first.Book List1. "In-depth analysis of SQL
for download. 11. Avoid redirection The redirection of a Web page can incur additional overhead, so you want to avoid a redirection of the page to a jump operation. 12. Delete duplicate scripts A page containing the same JavaScript file two times can affect the performance of the load, so you need to delete the duplicate script files. 13. Configure ETag This is a puzzling question. In theory, the etag deletion of the
can write efficient T-SQL statements.Reference documents Microsoft Books Online logical operators and physical operator references Refer to the book SQL. server.2005. Technical Insider "series ConclusionThis article is a bit long, but the introduction of sub-query content is not very full, follow-up
both are created in the SGA but SQL plan directives have not yet been persisted to the Sysaux table space, and statistical feedback is used during the re-optimization period, ignoring the existence of SQL plan directives.Ø both are created but the SQL plan directives are persisted to the Sysaux table space, and the SQL
Performance Tuning for mysql SQL statements Performance Tuning for mysql SQL statements In server development, there are sometimes requirements on the concurrency, and sometimes an
Original: SQL Server Tuning Series play turn three (use index hint (Hint) to boot statement maximum optimization run)ObjectiveThis article continues to play the content of the module, about the location of the index in SQL Server No need to say, this article will analyze how
higher, faster disk.2.5.1. Network performance evaluation（1）通过ping命令检测网络的连通性（2）通过netstat –i组合检测网络接口状况（3）通过netstat –r组合检测系统的路由表信息（4）通过sar –n组合显示系统的网络运行状态Three Linux server performance Tuning 1. Tuning the Linux kernel elevator algorithm for disk I/OWhen the file system is se
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