MySQL

There are a lot of tutorials on MySQL online, but none of them are up to date, I just have a brief description of the latest version of my SQL installation and setup, and most of the operations are the same.The following is described in accordance

EXPLAIN语句能够被用于获取一些关于SQL执行时的相关信息，比如表的连接顺序，对表的方式方式等等。通过对该相关信息进行进一步的分析，我们 可以通过对表添加适当的索引，以及优化连接顺序，使用提示等等手段来达到使SQL高效运行的目的。本文描述了EXPLAIN的用法并给出了相关示例。I. Overview of explainEXPLAIN 语句主要是用于解析SQL执行计划，通过分析执行计划采取适当的优化方式提高SQL运行的效率。EXPLAIN

To connect to the MySQL database:The main view of MySQL installed in which directory:Mysql-h host Address-u user name-P user password or mysql-h IP address-u zaiai-p zaiai or/var/email/mysql/bim/mysqlSQL Modify field type in MySQL databaseFirst of

Two ways of solving1. You can configure MySQL connection poolvar mysql = require(‘mysql‘);var pool = mysql.createPool({ host: ‘localhost‘, user: ‘nodejs‘, password: ‘nodejs‘, database: ‘nodejs‘, port: 3306});var selectSQL = ‘select *

The section on SQL and index optimization has finally finished learning, today began to enter the second level of learning, database structure optimization, the first part, select the appropriate data type.The choice of data type, with emphasis on

Server Leasing - install mysql under Windows 1. Download mysql-5.0.22-win32.zip installation, in order to be in the c/c++ mysql, When installing, you need to click " c Include files/lib Files "option, this step installs mysql

1, modify the table, log in to the MySQL database, switch to the MySQL database, using SQL statements to view"Select Host,user from User;"\mysql-u root-pvmwaremysql>use MySQL;\mysql>update User Set host = '% ' where user = ' root ';\mysql>select

Recently encountered a MySQL subquery at the time of development to delete the original table data problem. On the internet also saw a lot of methods, basic is also the egg (not write too messy is too slow).The company DBA gave a very good solution,

Ubuntu 14.0.4 64MySQL 5.6Niginx 1.4.4PHP 3.6Completely uninstall MySQL under UbuntuMake a note:1. Delete MySQL1sudo apt-Get Autoremove--purge MySQL-Server-5.02sudo apt-get remove MySQL-Server3sudo apt-get autoremove MySQL-Server4sudo apt-get remove

 DescriptionOperating system: CentOS 5.X 64-bitMySQL version: mysql-5.5.35MySQL configuration file:/etc/my.cnfMySQL Database storage directory:/data/mysqlto achieve the purpose: turn on the MySQL Slow query log feature, install the use of MySQL slow

Today just in preparation for the company's interview, so the MySQL knowledge points to review, to find a good blog, but also to their own MySQL to do an accumulation.Please refer to the original text: http://www.cnblogs.com/zhangzhu/archive/2013/07/

The installation files are installed in the DMG format of the Mac under MySQL, but no files are uninstalled ... It's a very depressing thing.Search the Internet, found that the method originally had to be manually deleted.Many articles account for

1. PrincipleMySQL replication technology has some of the following features:(1) Data distribution (distribution)(2) Load balancing (load Balancing)(3) Backup (Backups)(4) High-availability and fault-tolerant lines of availability and failoverAs a

Continuation of the Yii Framework2.0 Development Tutorial (3) database MySQL PrimerFirst, give some respect. Yii2 Database Support IntroductionYii is based on the establishment of a mature database access layer for PHP's PDO. It provides a unified

The main reality of this script is to implement backup of MySQL database and keep backup files for the last 15 days in CentOS. Avoid too many useless, stale backup footprints.#!/bin/bashId="Root" #User namePwd="123123" #Passworddbs="conedu Commlib" #

Can the MySQL command line implement a new user? The answer is undoubtedly yes. You can also grant permissions to a user after you create a new user using the MySQL command line.First of all, to declare: In general, to modify the MySQL password,

First, compile and install MySQL before the preparatory workInstall the tools and libraries needed to compile the source codeYum install gcc gcc-c++ ncurses-devel perlInstall CMake, download the source code from http://www.cmake.org and compile the

Some configuration options are set when PHP is installed, including:--with-mysql[=dir]: includes MySQL extension, [=dir] specifies MySQL installation directory, omit [=dir] to default location/usr--with-mysqli[=file]: Contains the mysqli extension, [

MySQL storage engine: The storage Engine is also commonly referred to as the "table type"Modify the original Hellodb.sql storage engine to InnoDBSed-i ' [email protected][email protected][email protected] '/home/hellodb.sqlImport the modified SQL

To the scene MySQL introduction My.ini Added to the following [Mysqld] Skip-grant-tables Win+r hotkey into cmd and then enter the command net stop MySQL last point, make folders MySQL folder under folder of Bin Input command mysqld-nt--skip-