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7, MySQL client tools and SQL introduction 1. Syllabus: mysql client command introduction; How to get help from mysql; Management database of DDL statements; DDL statement management table and case introduction; Data in management table of DML statement; SELECT to retrieve data; 2. mysql interface program and SQL introduction mysql client comma ...

MySQL provides a variety of methods to obtain database metadata (information about the database and various objects in it): *Various SHOW statements, such as SHOW DATABASES or SHOW TABLES; *Information? Table in schema database; *Command line programs, such as mysqlshow or mysqldump. Use SHOW statement to get metadata -- List accessible ...

When exporting, backing up and restoring Mysql database from the master database to the slave database, you need to pay attention to whether to enable GTID mode for the database. If you enable it, you should add the parameter -- set GTID purged = off to mysqldump data. See reprint for details: Here are the first 30 lines of a.sql exported with ...

One time when I was helping my friends solve problems, their server's MySQL was multi-instance, on which I made a master-slave configuration. Before I used multiple instances, I used multiple configuration files. This article mainly describes how to start and close multiple instances in a configuration file. Profile Content [ ...

1. Install mysql database, and configure the mysql installation directory bin directory to the system environment variable 2, command mysqldump -h (IP) - p (port number) - u (user name) - p (password) - default character set = utf8 database name > where to back up to the local disk Column: mysqldump - h192.168.1.10 - p330 ...

--Using mysql's mysql dump to export and import table structure --The command is as follows: mysqldump -d -h localhost -u root -pmypassword databasename > dumpfile.sql --Where - d means to export only table structure, not data, - h means host, - u means user, - p means password database means to export that database, and d ...

Database backup statement mysqldump -S /tmp/mysql3309.sock -u root -pMySQL8.0 \ --single-transaction \ --quick --flush-logs \ --triggers \ --routines \ --events \ --set-gtid-purged=OFF \ --databases testdb > testdb.dump The following data exists in table nw during backup mysql> select * from nw; +---------------------+ | dt ...

Generalization In Linux system, the executable commands are usually stored in / bin, / sbin, / user/bin, / user/sbing. The details are as follows: /bin Store the most basic and necessary execution commands of system operation, that is, the commands that can be executed for all users. The following is the bin directory und ...

Create test library and table create database test; use test; create table leo (id int,name varchar(10)); insert data insert into leo values (1,"liufeng"); insert into leo values (2,"zhangsan"); insert into leo values (3,"liufeng"); insert into leo values (4,"zhangsan"); mysql> select * from leo; +------+----------+ | id | name | +-- ...

Chapter 7 Backup and Recovery 1. What does DBA (Operations and Maintenance) need to do in backup recovery 1.1 Design backup strategy 1.1.1 backup cycle Day, week, month 1.1.2 Backup Mode Full, incremental... 1.1.3 Backup What? data ...