MySQL

MySQL has several ways to back upRecently blogs have been trying to write some. But do not know what to write, feel that their recent knowledge has nothing to add, today I think of a blog can write. I have tried to back up MySQL from the data

There's nothing more to see.Basic Knowledge Review Basic knowledge, especially some theoretical knowledge, such as: What are the index types of MySQL, which is a semi-open proposition; From the

concurrency control shared lock exclusive lock table-level row-level lock InnoDB Falcontransaction: Start Transaction ..... CommitACID: atomicity, consistency, isolation, durabilityA deadlock is a vicious phenomenon that occurs when two or more

#!/bin/sh # MySQL Data backup script # # Use mysqldump--help,get more detail. # Bakdir=/root/back/mysql Logfile=/root/back/mysql/mysqlbak.log Date= ' Date +%y%m%d%h%m%s ' echo "" >> $LogFile echo "" >> $LogFile echo "-------------

MySQL master-Slave Building summaryI. prerequisites for MySQL master-slave database construction1.mysql version must be consistent2. change the firewall and SELinux policies to prevent test failurestwo . Modify the master server configuration file ,

 show variables like  '%character% ';   +--------------------------+--------------- -------------+| variable_name            |  Value                       |+--------------------------+----------------------------+| character _set_client     | utf8  

~ ~ Grammar ~ ~CREATE TRIGGER --The trigger must have a name, a maximum of 64 characters, and may be appended with a delimiter. It is basically like naming other objects in MySQL.{before | After} --the trigger has a time setting for execution: it

MySQL Blog directoryLinux CentOS6.6 i386 source CMake compile MySQL 5.5http://990487026.blog.51cto.com/10133282/1692874MySQL mysqldmin command line tool GUI toolhttp://990487026.blog.51cto.com/10133282/1692910MySQL data types and Sql_modehttp://99048

Import Java.sql.connection;import Java.sql.drivermanager;import Java.sql.preparedstatement;import Java.sql.resultset;import Java.sql.resultsetmetadata;public class Mysqltest {/** * @param args */public static void main ( String[] args) throws

#安装CMake#安装依赖包Yum Install gcc-c++ Ncurses-devel–y#安装脚本:Tar XF cmake-2.8.8.tar.gzCD cmake-2.8.8./configureGmakeGmake InstallCd.. /# Create MySQL users and GroupsGroupadd MySQLUseradd mysql-s/sbin/nologin-m-G MySQL#Unzip the compilationMysql# Specify

Data installation ConfigurationUpload mysql-community-release-el6-5.noarch.rpm PackageEnsure database version is consistentInstalling RPM PackagesThe address and package name of the RPM-IVH package. rpmYum UpdateInstalling Mysql-serverYum-y Install

First, use Talend to randomly generate 10 million data: There are now 10 million + data in the database table: Mysql> Select Count(*) fromZhangchao;+----------+| Count(*)|+----------+| 10040005 |+----------+1Rowinch Set(2.50SecThe time to query a

MySQL modifies a column, modifying only the type of the column, such as the original Decimal (11,2), to Int (11), which can be writtenALTER TABLE COLUMN int (DEFAULT0' notes ';Note that although you only want to modify the column type, the

All codes are used for self-study test and annotation, knowledge details or knowledge points will not be exhaustive, there will be no explanation, only for their own study review.# #数据库操作 # #创建数据库 MyTest, and set the database character set to

The system has MySQL Backup tool mysqldumpBackup MySQL format is similar to MySQL login, plus the backup library name. Remote backup and local backup availablemysqldump-uroot-phd792310 DiscuzCommon mysqldump-uroot-phd792310 discuz

safety loading and unloadingsudo apt-get autoremove--purge mysql-server-5.0sudo apt-get remove Mysql-serversudo apt-get autoremove mysql-serversudo apt-get remove Mysql-common//This is importantsudo apt-get install Mysql-serversudo apt-get install

Format: Grant Select on database. * To User name @ login host identified by "password"1, add a user test1 password for ABC, so that he can log on any host, and all databases have query, insert, modify, delete permissions. First connect to MySQL with

Example: MySQL installed under E:\Program files\xampp\mysql1: Start ==> run ==>cmd2:e://Enter E-drive3:E:\>CD programe files//Enter the Programe files root directory4:e:\programe FILES\CD XAMPP5:e:\programe files\xampp\ CD MySQL6:e:\programe

1. Backup and Backup Discuz Library[[email protected] ~]# mysqldump-uroot-p654321 discuz > /data/discuz_sql.bak//backup Discuz Library[[email protected] ~]# mysql-uroot-p654321 discuz /data/discuz_sql.bak//Recovery Discuz Library2. Back up and

Write in frontBecause of the recent use of MySQL more, so want to understand the content of the next ef+mysql, found that EF connected MySQL database, there is a road toss. Toss to the end, crazy.StepsThis is the way to use EF with DB first.From the