MySQL

Turn http://stevenjohn.iteye.com/blog/976397 MYSQL primary key auto-growBlog Category: DataBase Mysqlsql Create a database and create a table.SQL code mysql> Create database ssh2; Query OK, 1 row affected (0.04 sec) mysql>

Some settings for MySQL slow query1) Check to see if MySQL turns on slow query logShow variables like ' Slow_query_log ';2) Set non-indexed records to slow query logset global log_queries_not_using_indexes=on;3) See how long SQL is logged to the

In the previous article "InnoDB Source analysis of the redo log structure" We know the basic structure of redo log and log writing steps, then redo log is how to recover data? When is the log deduction for redo log? Redo log deduction only after the

Record it for later useSettings = Require '. /.. /settings.js ' Exports.register = (req, res), nick_name = req.body.nick_name email = Req.body.email Password = req.b Ody.password # config Variable table_name = ' user_info ' database =

After installing PHP and MySQL on the Linux CentOS system, for convenience, PHP and MySQL commands need to be added to the system commands, if you do not add to the environment variable, execute "php-v" command to view the current PHP version

Innobackupex is part of Xtrabackup, and its essence is to call Xtrabackup. The main difference is that Xtrabackup supports the XTRADB engine in addition to supporting the InnoDB engine. This article mainly encapsulates the Innobackupex to shell

MySQL Trigger TriggerTrigger (Trigger): Monitors a situation and triggers an action.Trigger creation Syntax four elements: 1. Monitoring location (table) 2. Monitoring Events (Insert/update/delete) 3. Trigger Time (After/before) 4. Trigger Event

1. Environment: Windows,mysql Server 5.5,navicat Formysql2. mysql Common SQL statementsSQL classification:ddl-Data Definition language (create,alter,drop,declare)dml-Data Manipulation Language (Select,delete,update,insert)dcl-Data Control Language

1. Export the entire databaseMysqldump-u User name-p password database name > exported file namec:\users\jack> Mysqldump-uroot-pmysql sva_rec > E:\sva_rec.sql2. Export a table, including table structure and dataMysqldump-u User name-p password

existing2DeskDB Server, respectively, forABusiness andBbusiness, whichAthe business is more important and requiresABusiness of1a db (Taeoss) for hot preparation, presumably40Gdata and use the businessBof theDBserver as the standby machine, the

Mysqlhotcopy Use the lock tables, flush tables, and CP or SCP to quickly back up the database. It is the quickest way to back up a database or a single table, which is completely physical, but only used to back up MyISAM storage engines and run in

Symptoms: Enter the password a flash, a hint is not, the password first guarantee is correct.So I thought of directly skip permission verification, using the following methods:First, enter the cmd into the MySQL installation directory, and then cut

Garbled, there is garbled in the database, page extraction data garbled and other display normal, phpMyAdmin also show normal, and so on.Database, Web page encoding inconsistency caused the assumption that using Utf-8 encoding (your uploaded php

InnoDB generally corresponds to Compact, MyISAM generally corresponds to static and dynamicIn MySQL, if there is a table with varchar, text, and its deformation, blob, and its deformed fields, then this table is actually called a dynamic table, that

MySQL is a popular database for small and medium-sized websites, however, many people do not know exactly how much data MySQL can support, coupled with some domestic CMS manufacturers to the responsibility of the data load to it, resulting in a lot

Every installation environment to go to Baidu several articles, today simply write an article, after the trouble of Baidu, this article is introduced in the Ubuntu14.04 under the LANMP Environment (apache+nginx+mysql+php), if you only want to

Today's work encountered problems, the new Linux server, PHP, Apache and a series of extensions installed, in the local good program moved up to hold the database connection error, but with the SQL command can connect up,Make a simple Judgment

First, pre-installation preparation1, download the installation package, can go to MySQL official website http://www.mysql.com/download, 1-1:Figure 1-1Download the installation file as shown in 1-2:Figure 1-2Second, installation1, double-click the

Log4j can support log output to files, databases, and even remote servers, this time to share how to output to MySQL.(1) the configuration of the log4j.properties is as follows: log4j.rootlogger=error,appender1,appender2 log4j.appender.appender1=

1. log in to MySQL1.1 Single-Instance login1) MySQL has just installed MySQL without password in the case of login2) mysql–u root just installed MySQL login without password3) mysql–u root–p Standard DBA Login3) mysql–u root–p ' password ' no