MySQL

#!/bin/bash# # rrogram:#Installmysql# history:# .-Ten- toLuoqi V0.1release# email:#916790942@qq. com #以下rpm包需要自己下载并和该脚本放在同一目录下 #mysql-community-server-5.7. +-1. el7.x86_64.rpm mysql-community-client-5.7. +-1. el7.x86_64.rpm mysql-community-common-5.7

View current configurationShow VARIABLES like '%max_allowed_packet% ';Modify methodYou can edit the my.cnf to modify (under Windows My.ini) and modify it in the [Mysqld] section or in the MySQL server configuration section. Under [mysqld],

Insert IgnoreWhen data is inserted, such as when an error occurs, such as repeating data, no error is returned, only as a warning.Insert ignore into table (Col1,col2) VALUES ('val1','val2');On duplicate key updateWhen primary or unique repeats, the

There are two tables,A sheet for hobby table BA table for user table UU tableID Name Hobby ID1 sheets of three 1,2,3,42 Lee 42, 5b tableID Name1 Play Table Tennis2 Dozen Badminton3 Dozen Blue Balls4 playing games on the Internet5 Playing CardsNormal

Connect to MySQLMysql-hlocalhost-uroot-pView Current DatabaseSHOW DATABASES;Create a database ShopCREATE DATABASE ShopDelete a database shopDROP DATABASE ShopSelect (open) Database shopUse ShopView all tables in the current operations databaseSHOW

What is Binlog Binlog, the binary log, which records all changes on the database. At the end of the SQL statement that changes the database, a record is written at the end of the Binlog, and the statement parser is notified, and the statement

Method 1: Use the MYSQL-V command to view:[Email protected] mysql]# mysql-vmysql Ver 14.14 distrib 5.1.73, for Redhat-linux-gnu (x86_64) using ReadLine 5.1[[e Mail protected] mysql]# mysql--versionmysql Ver 14.14 distrib 5.1.73, for

Download pathhttps://dev.mysql.com/downloads/mysql/ C:\windows\system32>net start MySQL System error 2 has occurred. The system cannot find the file specified. After switching to the bin directory, remove the

Create procedure deletedatabypdfdocid (   in pdfdocid varchar ()) BEGIN# Delete data based on Pdfdocid delete from pdf_formula where pdf_docid = pdfdocid ;D elete  FROM pdf_image WHERE PDF_DOCID = pdfDocId ;D elete from pdf_table

Reprinted from: http://blog.csdn.net/netcy/article/details/8464503A common use of the all and any operators is to test the results of a data-only query with a relative comparison operator. They test whether the comparison value matches all or part

Reference: http://blog.csdn.net/jiary5201314/article/details/520268161.MYSQL exporting a database to a SQL fileActually very simple, is a statement on it, first we open the CMD, do not go into the MySQL command interface, directly according to the

1. Download MySQL Sourcewget http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm2. Install the MySQL sourcesudo rpm-ivh mysql57-community-release-el7-7.noarch.rpm3. Installing Mysql-community-serversudo yum install

ObjectiveDid so long front-end development, after communicating with colleagues, found that the database of short board more and more affected the follow-up development, review some of the previously learned SQL related knowledge.Start with the

Recently, we need to use Django 's MySQL Read-write separation technology, looked up some information, the method was sorted down. In the Django Implementation of the MySQL Read and write separation, in fact, the different read and write requests

Load data (SQL), loaddatasqlFor insert operations on database tables, we will write programs to execute insert SQL statements, and insert less data. If there is more data. The execution efficiency may be unsatisfactory. The load data statement is

Install Mysql5.7.19 and centos7mysql5.7.19 on centos 71. decompress the file [Root @ centos3 ~] # Tar-zxvf mysql-5.7.19-linux-glibc2.12-x86_64.tar.gz-C/usr/local/ 2. Rename [Root @ centos3 ~] # Cd/usr/local/ [Root @ centos3 local] # Music mysql-5.7.1

Java MySQL database programming Chapter 5: transactions, views, indexes, backup and recovery, mysql Database ProgrammingChapter 5: transactions, views, indexes, backup and recovery 1. Transactions refer to bundling a series of data operations into a

MySQL and mysql on the first day How to install MySQL I saw a variety of tutorials download mysql-5.7.17.msi from the official website, installation encountered problems. The. Red box prompts that Microsoft visual c ++ 2013 runtime is not

Centos7.2 install mysql and centos7.2mysql on 64-bit linux   1Online InstallationMysql Enter the command line in the terminal (download mysql from the official website ): # Wget https://dev.mysql.com/downloads/repo/yum/mysql57-community-release-el7-1

What MySQL has learned and what mysql has learned How MySQL changes the online configuration scheme:In principle, backup and backup work are required, including parameter optimization and configuration scheme, configuration rollback scheme, and