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SQL Server Performance Tuning 3 (Index) MaintenanceHeat1 reviews Brook Stream GrassSQL Server Performance Tuning 3 (Index) MaintenanceObjectiveThe previous article describes how to improve the query performance of a database by b
SQL Server Full-text indexing performance has been not too good, listen to colleagues today to share, found a skill, go back to try, found that can obviously improve the performance of full-text indexing, generally can improve twice times + Original SQL statement: SELECT
Tags: des style blog http ar io color using SPSQL Server Performance Counter schema Introduction to Windows Performance counters The operating system can use the Performance Monitor graphical tool to measure performance information for systems, applications, se
SQL Server Performance Tuning entry (graphic version) Step 1: capture sample data during business peaks(About 2 hours ). The tool used is the profiler that comes with sqlserver, also known as the event probe. For example, after entering, click the button on the leftmost side to create a new trail: DBO permission is required for logon, therefore, you can log on wi
Many enterprises also use various versions of Windows 9x in various contexts, so in order to use SQL Server 2000 in these environments, we must first understand the performance and limitations of Windows 9x. Client software SQL Server 2000 client software is included with
After a period of research, we started to optimize the performance this week. Before optimization, I will summarize some of the information I have investigated. 1. Background This is a system developed in the past 03 years. NET 1.1 + SQL Server 2000, the operating system uses Windows2003. After so many years of use, the operating system was upgraded (from Windows
The source of this article: http://www.cnblogs.com/wy123/p/7106861.html(It is not the original works right to retain the source, I my book still far to reach, just to link to the original text, because the following may exist some errors to amend or supplement, without him)Recently encountered in SQL Server several times the developer submitted the performance pr
compression is 167M, the size of the table after compression is only 40% of the original table, the effect is obvious, and because most of the table's fields are only IDs, the relative repetition value is not too much.However, we see that the size of the index varies substantially, so we continue to compress the index:5. Compression indexAlter index idx_tb_wcb_id on Tb_wcbrebuildwith (Data_compression=row)6, the comparison after the index compressionsp_spaceused ' ms_visit_qst_opt '/*name
Tags: blog http io os using AR java strong SPIndex of http://www.blogjava.net/allen-zhe/archive/2010/07/23/326966.html Performance optimizationRecent project needs, did a period of time SQL Server performance optimization, encountered some problems, but also accumulated some experience, now summed up, with June share.
This article discusses how to improve the performance of SQL Server databases. BKJIA database channel recommends "getting started with SQL Server" to help you better understand SQL Server
Label:In the initial SQL Server performance issue (2/4), we discussed the list of waiting resources or running session scripts. In this article we will look at how to list blocked sessions with specific information. 1 /******************************************************************************************/ 2 CREATE
1> Computer HardwareIf you suspect that computer hardware is the main cause of affecting SQL server performance, you can monitor the load of the corresponding hardware through SQL server performance monitor to confirm your guesses
server| Data | database | performance | optimization Editor's note: Database performance optimization and database management system are closely related, different database management system in the specific operation of a very different. Following this newspaper in 2003, the 48th, 49 issue of "Sybase Database Performance
, Daysarray.length-2, Guidarray, guidarray.length-6, 2);Array.copy (Msecsarray, msecsarray.length-4, Guidarray, guidarray.length-4, 4);return new System.Guid (Guidarray);}Generate time information from the GUID returned by SQL SERVERpublic static DateTime Getdatefromcomb (System.Guid Guid){DateTime basedate = new DateTime (1900,1,1);byte[] Daysarray = new Byte[4];byte[] Msecsarray = new Byte[4];Byte[] Guidarray = GUID. Tobytearray ();Copy the date par
not very useful because the connection command is not included in the query, but this information is useful if the query contains one or more connections.The scan count value for a table outside a loop is 1, but for a table within a loop, its value is the number of cycles. As you can imagine, for a table within a loop, the smaller the value of its scanner, the less resources it uses, and the higher the performance of the query. Therefore, when adjust
high-performance applications. I am not a DBA, but an ordinary developer. The above are some experiences and experiences in my practical work. In view of my very limited level, if you say something wrong or cannot understand it, I hope you can correct it to avoid misleading others. I am very grateful. In the future, I will continue to write some practical experience on SQL
The impact of using SQL waits blocking on overall performance SQL Server 2000 provides 76 wait types to provide waiting reports. SQL Server 2005 provides an extra 100 wait types to track application
For systems running on-line, current database performance monitoring typically monitors the following points:(1) Whether there is obstruction (Blocking);(2) whether there is waiting (waiting), blocking is the lock (locks) waiting;(3) Whether the running time is too long (long running);(4) Whether there is a deadlock (Deadlock);Sys.dm_exec_query_stats and so on, and so on some statistical information, usually not as the real-time alarm content, but in
, change the valve size in the production system, that is, the so-called operating baselineWarning Implementation method1, SQL Agent configuration job method implementation2. Scheduled TasksThe above two configurations, can be flexibly mastered, the operation is quite simple, if not, can self Google. Of course, if you do not want to intervene in the normal production system, you can add a server dedicated t
existing event classes are displayed on the right. For performance optimization, we do not need security review or session information. Click the delete button: Switch to the third tab page, and the data column here is enough by default. Of course, if you are not pleasing to the eye, you can delete the appname/NT username and so on. On the last tab page, we need to block the event ID generated by the sys
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