performance mysql

2015-10-24DirectoryResources[1] Tang Hanming. mysql database development, optimization and Management Maintenance (2nd edition) [M]. Beijing: People's post and Telecommunications press, 2014[2] Schwartz. High-Performance MySQL (3rd edition) [M].

Say 工欲善其事, its prerequisite. Today we will briefly introduce the next explain.Content navigation Id Select_type Table Type Possible_keys Key Key_len Ref Rows Extra Environment ready MySQL

Mind Map The most storage engines used in mysql are innodb and myisam. As the default storage engine of Mysql, myisam is worth learning. The following is my understanding of myisam mentioned in the High-Performance MYSQL. Please give me some advice.

Differences between MySQL and SQL Server 1. mysql supports enum, set, and SQL server.2. mysql does not support nchar, nvarchar, and ntext3. the incremental Statement of mysql is AUTO_INCREMENT, while that of mssql is identity)4. mssql by default,

The following is a detailed introduction to the use of custom variables in MySQL and the compilation of a UNION example. If you need a friend, you can refer to this example (refer to self-performance MySQL) and assume that you have the following

 [Turing Book recommendation] award-winning books for the jolt award published by Turing High-quality programming art,. net design specifications, C ++ programming specifications, reconstruction and pattern, Design Pattern Analysis (2nd

Analyze Mysql InnoDB indexes and mysqlinnodb Indexes Abstract: This article introduces the InnoDB Index-related knowledge of Mysql, from various trees to the indexing principle to the details of storage. InnoDB is the default storage engine of Mysql

MySQL compilation parameters are many and complex, which makes new users feel very proud. If MySQL is installed in a formally generated environment, there is not enough time to study the meaning of each parameter, I personally suggest using

We will first discuss the index, because it is the most important tool to speed up the query. Of course there are other technologies to speed up the query, but the most effective is to use the index properly. Next we will introduce what the index is,

The second edition of Progressive Linux will be released (with cover) From the first edition of "Progressive Linux" released, to now nearly 6 years, 6 years, the technology has changed a lot, the kernel version of Linux system from 2.6.9 (rhel4.x)

Books explaining database table design solutions have found that the biggest bottleneck for websites is the rationality of database table design. Please recommend books on this topic. Preferably related to mysql ., High-Performance MySQL Performance

This article lists some of the books that are available for MySQL and OPS entry and advanced use.Background: There are always many students in the forum who want to learn the database, or to do some preparation for the DBA. Over the years as a MySQL

Pt-query-digestPt-query-digest can parse queries from common MySQL logs, slow query logs, and binary logs, even from the tcpdump of show Processlist and MySQL protocols, if no files are specified, It reads data from the standard input stream (STDIN).

As a free and efficient database, MySQL is basically the first choice. Good security connection, with query resolution, SQL statement optimization, use of Read and write locks (refinement to line), things isolation and multiple version concurrency

This article comes from NetEase cloud community.InnoDB is the most common storage engine for MySQL, and understanding the index of the InnoDB storage engine is of great benefit to daily work, and the index exists to speed up the retrieval of

Transferred from: https://tech.meituan.com/innodb-lock.html Objective: We all know the nature of transactions, the database in order to maintain these properties, especially consistency and isolation, the general use of lock this way.

Transferred from: http://www.cnblogs.com/magialmoon/archive/2013/11/23/3439042.htmlMySQL official manual description of the explain naming document: Https://dev.mysql.com/doc/refman/5.7/en/explain-output.html#explain_select_typeThe recent slow

Original: http://tech.meituan.com/innodb-lock.html Objective: We all know the nature of transactions, the database in order to maintain these properties, especially consistency and isolation, the general use of lock this way. At the

bloggers have encountered such a problem in development: select * from ' user ' Whereid in (23,1,55,94)when executing a SQL similar to this one, MySQL will sort the IDs in advance and then look for them: Description: This is introduced in

1.Posgresql is a process mode, multi-process, single-threaded, and similar to Oracle. While MySQL uses threading mode, single-process, multi-threaded, for this, you can view the Task Manager when running the database, and so is SQL Server.As we all