show databases

1. Modify the root user password to remove the empty passwordThe default installed MySQL root user is a blank password, for security purposes, must be modified as a strong password, so-called strong password, at least 8 bits, composed of letters,

In enterprises, the high availability of databases has always been the top priority of enterprises, many small and medium-sized enterprises are using MySQL master-slave scheme, a master and many from, read and write separation, but single-master

Nine. Cross-queryA cross-query can calculate the sum, average, count, or other sum of the data, which is calculated byTwo kinds of information are grouped: one appears on the left side of the table and the other appears at the top of the

[Email protected] ~]# mysql-uroot-pzaq12wsx #入库mysql> show databases; #查库ERROR 2006 (HY000): MySQL server has gone awayNo connection. Trying to reconnect ...Connection id:24Current database: * * * NONE * * *+--------------------+| Database |+--------

Action object:On-line and test all MySQL plus databasesTo create a user:create user ‘testname‘@‘%‘ identified by ‘123456‘;To view the permissions of a testname usershow grants for testname;TestName User authorization:GRANT SELECT, INSERT, UPDATE,

The master from the copy experiment:First step: operation on the master server1. Modify Master server Master:[[email protected] ~]# vim/etc/my.cnfserver_id = 1//[must] server unique ID, default is 1log-bin=mysql-bin//[must] enable binary log2.

In enterprises, the high availability of databases has always been the top priority of enterprises, many small and medium-sized enterprises are using MySQL master-slave scheme, a master and many from, read and write separation, but single-master

0. Start and stop of MySQL servicenet stop MySQLnet start MySQL1, Connection MySQL format: mysql-h host address-u user name-P user Password1. Connect to MySQL on this machine. First open the DOS window, then enter the directory Mysql\bin, and then

Introduction to installation and configuration of MySQL under Centos 6.4Our previous article has introduced the function is mainly used in the recent company's environmental structure construction, so today's article is mainly for the company's

1, Connection MySQL format: mysql-h host address-u user name-P user Password1. Connect to MySQL on this machine. First open the DOS window, then enter the directory Mysql\bin, and then type the command Mysql-u root-p, enter after the prompt you to

1, Connection MySQL format: mysql-h host address-u user name-P user Password1. Connect to MySQL on this machine. First open the DOS window, then enter the directory Mysql\bin, and then type the command Mysql-u root-p, enter after the prompt you to

1, Connection MySQL format: mysql-h host address-u user name-P user Password1. Connect to MySQL on this machine. First open the DOS window, then enter the directory Mysql\bin, and then type the command Mysql-u root-p, enter after the prompt you to

MySQL Introduction 1, what is a database? A database is a warehouse that organizes, stores, and manages data according to its structure, which is generated more than more than 60 years ago, with the development of information technology and markets,

1, Connection MySQL format: mysql-h host address-u user name-P user Password1. Connect to MySQL on this machine. First open the DOS window, then enter the directory Mysql\bin, and then type the command Mysql-u root-p, enter after the prompt you to

First, MySQL commonly used statementsCreate, delete, and most basic queries:Display database mysql->show databases;Create DATABASE Mysql->create db;Delete database Mysql->drop db;Select Database Mysql->use dbCreate Tables Mysql->create table MyTable

1, problem one: Use update mysql.user set password= ' root ' change password, cannot log inWORKAROUND: The operating procedure is as follows.(1) Close MySQL (Kill the mysqld process), then use the command:Mysqld--skip-grant-tables(2) Start the

mysqldump -uroot-p123456 --default-character-set=utf8 Quan >/opt/quan.sql//Backupgrep -ev "#|\/|--|^$" quan.sql//View filesDROP TABLE IF EXISTS ' test '; Delete an old tableLOCK TABLES ' test ' WRITE; LockUNLOCK TABLES; Unlockmysql-uroot-p123456

1, Connection MySQL format: mysql-h host address-u user name-P user Password1. Connect to MySQL on this machine. First open the DOS window, then enter the directory Mysql\bin, and then type the command Mysql-u root-p, enter after the prompt you to

 MySQL's dos command line DaquanTags: dos command line2016-11-04 16:03 509 people read comments (0) favorite reports Classification:DOS command line (5)MySQL (1)Directory (?) [+]1, connect MySQL (Chinese garbled at the end of the article) format:

MySQL Format statement specificationHow do I log into your database?Example!If you are compiling the installation of the flowers, then you have to compile the installation of the directory to go, my is installed into the/usr/local/mysql database: Cd/