MySQL

1. Purpose: After the first installation of MySQL forgot the temporary password, through a variety of ways can not change the password, so you have to uninstall MySQL.2. Recommendation: The first time you install MySQL will be assigned a temporary

background:Company production environment server space Alarm, more than 80%, emergency check found is MySQL backup server, there is a record detail of the large table, occupy space around 150G. If he finds a problem, he will be solved. Plan to move

In the reconstruction of the site, the data structure is usually modified, so add, delete, add the MySQL table field is unavoidable, and sometimes for convenience, but also increase the modification of the table or field comments, the same field

This article turns from https://m.imooc.com/article/details?article_id=17290 thanks to the author The previous article recorded my understanding of the MySQL transaction isolation level READ UNCOMMITTED.This article records my understanding of

Objective: To master the construction process of mysql+php websiteExperiment Preparation:One server, one clientPreparation before the experiment:Build a Web server (procedure omitted)Experimental steps:Step One1. Installing PHP PacketsUnzip the Php-5

1. Description of the environment.Host: 103.241.49.137 (A)Host: 103.240.182.191 (B)MYSQL version is 5.1.112, authorized users. (I am lazy, directly with the root skip this step)A:Mysql> Grant Replication Slave,file on * * to ' backup_251 ' @ ' 103.24

Customer Name ConfidentialityData type MySQL 5.6 for WIN data capacity 6 G The fault type database was mistakenly deleted. The client himself tried various recovery tools and could not find the missing database files. Repair results using the

1th MySQL architecture and storage engine 1.3 MySQL storage engineThe biggest difference between a database and a file system is that the database is a transaction-enabledInnoDB Storage Engine:The default storage engine after MySQL5.5.8, primarily

The combination of using Docker to build Zabbix is Mysql+docker+zabix-server, using the Zabbix container to connect to the MySQL container, the database file of the MySQL container is guaranteed to exist the physical host/opt/mysql_db/mysql/ The

First, IntroductionIn the master-slave copy of the previous article: http://www.cnblogs.com/lay2017/p/9043985.htmlWe learned that MySQL writes logs through master, slave reads and executes the log content to achieve slave data consistent with master.

Description: Anemometer is a graphical display of MySQL slow log tool. Combining Pt-query-digest,anemometer can easily help you analyze slow query logs, so you can easily find which SQL needs to be optimizedThis is the Box anemometer, the MySQL Slow

The MMM high-availability MySQL program is a well-developed MySQL high-availability cluster solution written in Perl, based on MySQL master-slave replication, with a Management side (monitor) and multiple agent-side (agent) components. Through MMM,

Environment: Ip System Service 192.168.182.155 centos7.4 Installing MARIADB 192.168.182.156 centos7.4 Installing Nginx First, MARIADB installation and

This article mainly summarizes some commonly used in the actual use of some of the MySQL time and date and conversion function1.now (): Returns the current date and timeSelect Now (); // 2018-04-21 09:19:212.curdate (): Returns the current

This paper mainly introduces the realization of MySQL master-slave copy function under the environment of single-database multi-instance.Basic Flow:1.MySQL Master-Slave Replication Introduction2. Master-Slave replication database Combat environment

Before we introduced LAMP,LNMP and lamp is the Apache for Nginx,nginx is also a popular Web server, in processing high concurrent requests, performance is far better than Apache. Apache uses PHP as one of its own extension modules, and Nginx

First you need to installPPM Install Dbd::mysql UseStrict; UseDBI;my $host="localhost";#Host Addressmy $driver="MySQL";#interface type defaults to localhostmy $database="Runoob";#handle to the database # driver Objectmy $dsn="DBI: $driver:d atabase=

SELECT s.supplier_id as SupplierId, s.main_products as Mainproducts, s.group_id as groupid,s.head_url as Supplierhead,S.repair_center_name as repaircentername,s.shop_url as Shopurl, S.manager_phone as Managerphone, S.service_tel as

Https://www.cnblogs.com/weifeng1463/p/7941625.htmlmysql> use MySQL;Database changedMysql> Grant all privileges on * * to [e-mail protected] '% ' identified by ' password ';Query OK, 0 rows Affected (0.00 sec)Mysql> select Host,user,password from

Language methodPREPARE statement_name from Sql_text/* Definitions */EXECUTE statement_name [USING variable [, variable ...]]/* Perform the expected syntax */DEALLOCATE PREPARE statement_name/* Delete definition */CasesMysql> PREPARE prod from