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I haven't written any technical articles for a long time, because I have been thinking about how to write the "backend distributed" series. Recently, I have basically figured out that "backend distributed" includes "distributed storage" and

This article mainly introduces how to view, create, and delete indexes in MySQL, and analyzes the functions of indexes in MySQL in detail based on the instance form, you can also learn how to view, create, and delete indexes. you can refer to the

This article mainly compares the usage of distinct and count (*) in MySQL, and analyzes the usage and efficiency of the two in detail, interested friends can refer to some usage of MySQL DISTINCT keywords first: 1. it can be used when count

This article describes how to use the showprofile command in MySQL to analyze performance. showprofiles is a common command for database performance optimization, for more information, see how to donate the show profile to the MySQL community by

This article describes how to insert duplicate values in the unique column in mysql. it is mainly based on the mysql platform. through these solutions, you can implement some new functions and applications. This article will be shared here with

This article mainly introduces the analysis on English letters and lowercase letters in MySQL. The author has conducted experiments from multiple perspectives. if you need a friend, refer to the mysql database for query, sometimes English letters

[Php] mysql database operations-DB Class /* * Mysql database DB * @ Package db * @ Author yytcpt (shadow) * @ Version 2008-03-27 * @ Copyrigth http://www.d5s.cn/ */ Class db { Var $ connection_id = ""; Var $ pconnect = 0; Var $ shutdown_queries =

SUN clarified that MySQL is always an open source software last week. at the MySQL Conference and Expo Conference, SUN said that it would close some of the Mysql source code, which immediately aroused anger in the open source community. At present,

Summary of the restoration process of corrupted data in the mysql database this document is a summary of the original practice of Hewei, a master colleague. The process is really wonderful. Finally, the repair of damaged databases has achieved a

MySQL Getting Started Guide-quick reference (3) 9. multi-line command input The MySQL command line interface allows a statement to be input as one line, or expanded into multiple lines. There is no syntax difference between the two. With multi-line

How to install and use MySQL 　　 1. what is MySQL? MySQL (pronounced "My Ess Que Ell") is a multi-user, multi-thread SQL database Server developed by Tcx (http://www.tcx.se. MySQL aims to be fast, stable, and easy to use. 　　 MySQL can be obtained in

MYSQL Tutorial: check the data table and repair the data table MySQL server uses the permission table to control user access to the database. The permission table is stored in the mysql database and initialized by the mysql_install_db script. These

SQUID proxy server for user authentication SQUID and MYSQL are installed using the binary installation package released by SUN, which can be found in software_companion_x86 CD; and MYSQL_AUTH can be found by GOOGLE search. 1. install and configure

Detailed analysis: the alternative method for backing up MySQL databases uses MySQL for database backup. There are regular database backup methods, which share the same concept with other database servers, but have you ever thought about it, mySQL

New MySQL versions around Sun betray open source? A few months ago, the famous open-source database MySQL was won by Sun at a price of 1 billion US dollars, which caused hot comments from people in the open-source industry, this purchase will affect

MySQL MyISAM engine and Heap engine speed performance test (1) [from heiyeluren blog] test environment CPU: Intel Pentium4 2.66 GHz Memory: 1 GB Disk: 73 GB/SCSI OS: FreeBSD 4.11 PHP: PHP 5.2.1 MySQL: MySQL 4.1.23b Preliminary work My. cnf Max_heap_

NaviCat connection "MySql database does not support remote connection" solution Navicat Some time ago, because of a project, MYSql data synchronization service was required. However, because the website space service provider does not provide

SQL tips: quickly learn some of the exceptional and exquisite statements: amp; quot; SQLamp; amp; quot; bitsCN.com Exquisite "SQL" statements: ◆ Copy table (only copy structure, source table name: a new table name: B) SQL: select * into B from a

Xtrabackup user guide bitsCN.com 1. Introduction to Xtrabackup A. What is Xtrabackup? Xtrabackup is a tool used to back up InnoDB data. it supports online hot backup (data read/write is not affected during backup) and is a good alternative to InnoDB

Tuning bitsCN.com using Mysqlmy. cnf Mysql Performance Tuning (my. cnf parameters)The reasonable optimization of MySQL directly affects the speed and carrying capacity of the database!MySQL is also the most difficult part of optimization. it not