sql performance tuning techniques

Most developers take for granted that performance optimization is complex and requires a lot of experience and knowledge. Well, you can't say it's completely wrong. Optimizing your application for optimal performance is not an easy task. But that doesn't mean that if you don't have the knowledge, you can't do anything. Here are 11 easy-to-follow recommendations and best practices to help you create a well-p

, that is, the so-called "know each other, the victorious" principle.Purchase Address:http://www.china-pub.com/3501136Course Requirements 1. Have a strong interest in performance testing.2. Need a certain programming foundation, can read basic C language code can. But need to have certain self-study ability, this is the performance completes the performance test

There are very few courses on Java performance Tuning, so a comprehensive and in-depth introduction to Java performance Tuning, North wind is exclusive, special lecturer, more than 10 years of Java development work experience, Senior software development system architect, this set of courses are years of work experienc

children's shoes can be noticed in advance.The content of SQL Server performance tuning involves a wide range of topics, followed by an analysis in the following article.If you have any questions, you can leave a message or private messages, and look forward to an in-depth study of your child's shoes with SQL Server.

SQLServerProfiler-performance tuning has enough reason to become a hot topic. Today's fierce competition in the business field, if users think that an application is too slow, they will immediately turn to another vendor. To be full SQLServerProfiler-performance tuning has enough reason to become a hot topic. Today's f

statement that will form a specific plan, and the resulting specific plan is not always optimal, which is related to the content distribution, the amount of data, the type of data in the database's existing data tables, and the statistics that are used to record these details.All optimal planning choices are based on existing statistical information, and if our statistics are not updated in a timely manner, then the optimal execution plan will not be the best, and sometimes the worst.Reference

Label:ObjectiveIn the previous article, we analyzed the usage of query hint as the first of the last play module of tuning series. Interested can click to view: SQL Server Tuning Series play turn (how to run with query hint (Hint) bootstrap statement)This article continues to play the contents of the module, the same, or want to grasp the previous series of conte

purged, allowing for further analysis.If you want to delete a baseline:sql> exec dbms_workload_repository.drop_baseline (baseline_name=> ' apply_interest_1 ', cascade=>false);Sql> Select *from wrh$_active_session_history where snap_id in (4150,4151);snap_id DBID instance_number sample_id sample_time session_id ...4150 3437504306 1 14900840 July-March-11 02.55.02.038 AM 162 ...4150 3437504306 1 14900200 July-March-11 02.44.21.942 am 165 .......4151 34

MySQL from getting started to mastering (performance testing and tuning)Course View Address: HTTP://WWW.XUETUWUYOU.COM/COURSE/33Courses from the School of worry-free network : http://www.xuetuwuyou.com/Starting from the basics, all the way up to the advanced level, including but not limited to SQL statements, SQL

-party applications running on Linux, there are many performance tuning techniques that can help you improve the performance of your Linux servers and lower your operating costs.14. Correct configuration of MySQLTo allocate more memory to MySQL, you can set the MySQL cache size, and if the MySQL server instance uses mo

The simplest and easiest way to view the number of IIS connections is through site statistics, where the current number of online Web site statistics can be considered the current number of IIS connections. However, the current online number of "website statistics" is longer, typically 10 minutes or 15 minutes, plus statistical techniques and statistical mechanisms, resulting in more or less statistical errors. If you want to know the exact number of

system; Over-care user experience, such as the real-time update of the data without real-time update waste resources; The performance impact of the query statement: When the MySQL connection thread receives the SQL from the client request, it is parsed and parsed, then the stored procedure interface is called through the execution plan, and finally the data is returned to the client displ

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 Server 2008 series" This is the MSSQL 2005 Technology Insider series. Version 2012 also out of interest can see, Technical I

Buy Oracle Database Course package and enjoy 85 discount!!Package Address: http://edu.51cto.com/pack/view/id-807.htmlPerformance optimization for Oracle 11g R2 databaseDatabase performance problem is the most discussed topic in database field, because it involves database principle, IO storage, server performance, foreground application and so on, so the performance