MySQL

MySQL as the most commonly used database, often encountered a variety of problems. What we're going to say today is the changes to the table storage engine. There are three ways, the list is as follows. 1. True connection modification. It is slower

Opening query statement caching is also a strategy to optimize MySQL. MySQL is a common database for our development programs. It has the ability to cache common query statements in memory, so that when a given query statement is invoked again,

This article describes how to cooperate with the former to achieve keepalived dual-machine hot standby System environment: CentOS 6.3 x64 MySQL version: mysql-5.6.10 Keepalived version: keepalived-1.2.7 mysql-vip:192.168.7.253 mysql-master1:192.

1. GetAll method We can use the GetAll method instead of the Execute () method, which returns the result as a two-dimensional associated data, which can be easily handled using either a foreach or a For loop statement. In addition, the array

Scenario: Perform a full backup every Sunday and perform an incremental backup 1 o'clock in the afternoon every day Configuration The prerequisite for performing an incremental backup is that MySQL opens the log-bin log switch, for example in

Article attribution: http://feiyan.info/16.html, I want to write to myself, but found this June summed up very detailed. Moved right over here.With regard to the benefits of MySQL indexing, if the correct design and use of the indexed MySQL is a

The company MySQL architecture is a master multi-slave. In the daily use of the process we often encounter the main never sync, in order to deal with this problem in a timely manner using Zabbix monitoring MySQL master and slave state and set the

Because the database additions and deletions suddenly burst, need to query is the operation of those tables is particularly frequent, wrote a tool to analyze Bin-log, find and add to change the table, and the number of operations in descending order,

Original address: MySQL configuration file my.cnf detailed Gron Basedir = Path Use the given directory as the root directory (the installation directory). Character-sets-dir = Path Gives the directory where

Title, recently http://www.12reads.cn/MySQL often hangs, recently hangs the log:At time:wed Dec 7 09:15:01 CST 2016:mysql error STOP. At time:wed Dec 7 09:30:01 CST 2016:mysql error STOP. At time:wed Dec 7 10:00:02 CST 2016:mysql error STOP. At Time:

Install MySQL under CentOS, with the root account of MySQL, see the database results only Information_schema library, my original library and MySQL library are missing, and then execute the use MySQL prompt error, as follows:650) this.width=650;

1, Shared lock experimentSession1Build a table Lisa and insert data in Session1Mysql> CREATE table Lisa (name char (ten), age int (5));Mysql> INSERT into Lisa values (' Lisa ', ' 26 ');Add a shared lock to the age=26 lineMysql> set

In the/etc/my.cnf file, in the [Mysqld] section, addskip-grant-tables  then restart Mysqld Login to modify the root password of MySQL/usr/bin/mysqlwelcome to the mysql  Monitor. commands end with ; or \g. your mysql connection id

Ubuntu under shutdown Apache and MySQL boot upsudo Install sysv-rc-confsudosudo vi/etc/init/mysql. conf Ubuntu Run-level summaryGeneral Linux is divided into 7 levels: 0 for shutdown (Halt) 1 level is single-user mode 2 level is multi-user

First, install MySQL$ sudo apt-get install mysql-server$ sudo apt-get install mysql-clientRe-install phpMyAdmin$ sudo apt-get install phpmyadmin$ sudo apt-get install php-mbstring$ sudo apt-get install Php-gettextIf you do not install the above two

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SQL paging query Stored Procedure Code sharing, SQL stored procedure For more information, see the code. ---------------------------------------- Author: Zhang Xinyu ----- time: 2013-06-28 ----- Introduction: query by parameters and conditions by

Mysql database performance optimization sub-query and mysql database performance optimization I remember that when I was working on a project, I heard a sentence and tried not to use subqueries. So let's take a look at this article to see if this

Detailed description and comparison of the four transaction isolation levels of MySQL, and detailed description of mysql Detailed description and comparison of the four transaction isolation levels of MySQL At the SQL: 1992 transaction isolation

Install mysql 5.7.16 linux glibc2.5 x86 64 (recommended) and centos5.7.16 in CentOS 6.5 1. Download mysql-5.7.13-linux-glibc2.5-x86_64.tar.gz from official website Tested, this article also applies to the following versions: MySQL-5.7.10-Linux-glibc2