MySQL

If there are hundreds of tables in the company to trigger, if you manually write code. Very tired, so today I wrote a small program to automatically generate the mysql trigger code.$ Dbname = test; // Database$ Tab1 = user; // executed table$ Tab2 =

Write down the steps and update them at any time for any problems. Here I synchronizeDatabaseIs TEST1,EnvironmentDescription.HOST: 192.168.0.167 ()HOST: 192.168.0.20.( B)MYSQL version 5.1.112. Authorize the user.A:Mysql> grant replication slave,

How can I query repeated fields in a MySQL large table? This is a problem that many people have encountered. The following describes how to query duplicate fields in a MySQL large table for your reference. There is a large table in the database. You

Percona has improved the MySQL database server and significantly improved its functions and performance compared with MySQL. This version improves the performance of InnoDB under high loads and provides DBA with some useful performance diagnostic

Today, we will introduce six useful MySQL SQL statements. Many may use PHP to implement these functions. 1. Calculate the number of years You figured out how old this person is on your birthday. SELECT DATE_FORMAT (FROM_DAYS (TO_DAYS (now ()-TO_DAYS

For Windows Hosts ==================== Hypothetical environment: MySQL installation path: C: MySQL Forum Database Name: bbs MySQL root Password 123456 Database Backup destination: D: db_backup Program code @ Echo off C: MySQLinmysqladmin-u root --

Abstract: This article describes how to create, call, and use a stored procedure. I believe that mastering the cursor will be helpful to you. If you have any shortcomings, please advise. Navigation: 1. Create and call a stored procedureIi. Use of

Today, we will introduce six useful MySQL SQL statements. Many may use PHP to implement these functions. 1. Calculate the number of yearsYou figured out how old this person is on your birthday. SELECT DATE_FORMAT (FROM_DAYS (TO_DAYS (now ()-TO_DAYS (

Recently I am reading MySQL. After installation, every time I start the MySQL command line tool in the Start menu, I directly use the root user to connect to my local database. Enter the password to start work. To connect to MySQL on the server,

I. Environment DescriptionMaster Database Server ip Address: 192.168.0.2Slave Database Server ip: 192.168.0.3Mysql on the master-slave server has been completely installed, but is put into production, so no data is generated.Ii. Master-slave

0. First, prepare two machines A and B and install the same version of mysql on them (preferably 5.0 or above)A is the master database, and B is the slave database.1. mysql synchronization server-id format description A B CA: 1: Indicates domain

  -- View the character set of the database Show variables like 'character \ _ set \ _ % '; Show variables like 'collation _ % ';   -- Set database character encoding Set names 'gbk' Alter database payment character set GBK; Create database

1. Modify the mysql Log PathVim/etc/my. cnfLog-bin = mysql-binTo:Log-bin =/$ PATH/mysql-binAfter modification, save and exit.Modify the mysql-bin.index file to modify the path to an existing log.The default value is./mysql-bin .....Change to/$

  Parameters Mysql stored procedure parameters are used IN the definition of stored procedures. There are three parameter types: IN, OUT, And INOUT. Create procedure | function ([[IN | OUT | INOUT] Parameter Name Data Class…]) IN input

Principle:MySQL Replication is a master-slave synchronization solution for multiple MySQL databases. It features Asynchronization and is widely used in various scenarios that require higher performance and reliability for MySQL. Another technique

The script is as follows:#! /Bin/bash# Function Description: This function is used to back up a database.# Prepared on: 2010/12/06 PATH =/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbinExport PATH# Database usernameDbuser = 'root'#

Database development history:Hierarchical Model -->Mesh Model (high Coupling Degree) -->Relational Model (object-relational model) DBMS Database Management SystemRDBMS Relational Database Management SystemManage storageManagement security

There are many types of Mysql Log Files. Some log files record the service status of mysql and the system information generated by mysql during work, we can use this information to operate and maintain mysql services more conveniently. However,

ADDDATE (date, INTERVAL expr type) ADDDATE (expr, days)When activated by the INTERVAL format of the second parameter, ADDDATE () is the synonym of DATE_ADD. The related function SUBDATE () is the synonym of DATE_SUB. For information on the INTERVAL

Recently, the project encountered performance problems when using the mysql database. When a single table has more than million data, the speed of adding, deleting, modifying, and querying is significantly reduced.We are a call center, and we need