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Communication is very important, the channel of communication is very important. When the team needs to cooperate, it is necessary to find ways to inform other members of the team in the most effective way of what it is doing to avoid unnecessary harm. For example, the following has just happened:There is a test system. The historical task is t ...

Next: MySQL database master slave synchronization process mysql command introduction mysql is a database management command adopt mysql --help To view relevant parameters and instructions mysql --help #mysql database management command Usage: mysql [OPTIONS] [database] #Grammatical format --help #View help d ...

Last time: MySQL database entry multi-instance configuration When it comes to data, we are nervous. There are many types of data, but the total normalization point, data is very important and very important. Therefore, the daily data backup work has become the focus of the operation and maintenance work. Let's first look at the data in the dat ...

1. First create a backup folder mkdir /usr/local/database_backup/ cd /usr/local/database_backup/ 2. Create. sh execution file and write code vim mysqlbak.sh   #!/bin/bash PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin export PATH #Database username dbuser='root' #Password ...

I. Demand Background A friend's company needs to synchronize part of the data from the source to the target at regular intervals every day. There are tables of company_id column in the library, which only import the specified company_id column into the target database; there are tables of company_id column, which import all the data from the t ...

Joint table queries do not require foreign key constraints 1. inner join 1.1 Thinking Logic What do I need to check? Where to check? Which form links which table? What are the query conditions? Conditions between tables? Additional screening con ...

abstract This article is the fifth in a series of articles on database optimization: "Database optimization - backup and recovery" See more articles Database optimization: http://blog.csdn.net/leyounger/article/details/70157087 Backup and Recovery 1. Backup/Recovery Strategy For a DBA, it is very important to customi ...

Reprinted from: http://blog.csdn.net/jesseyoung/article/details/41078947 Introduction to 1 mysqldump mysqldump clients can be used to dump or collect databases for backup or transfer data to another SQL server (not necessarily a MySQL server). Dumps contain SQL statements that create and/or load tables.mysqldump can provide file output in t ...

Contents of this article:1.insert and replace insert data　1.1 insert into values()　1.2 insert into set　1.3 insert into select_statement　1.4 create table select　1.5 Dealing with Repetition of Key Values　1.6 Complete insert grammar2. Export and import data　2.1 select into outfile export data　2.2 load data infile imports data　2.3 mysqldum ...

Label PostgreSQL , MySQL , rds_dbsync , mysql , mysqldump , copy , mysql_fdw background Import MySQL data into PostgreSQL in a landless manner. 1rds_dbsync (recommended) MySQL Quasi-Real-Time Synchronization to PostgreSQL, One of Greenplum's Solutions - rds_dbsync This is the most efficient, supports no landing, supports streaming import, ...