mysql case in query

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MySQL Operations management-mysql Backup and recovery practical case and production plan 17

1. Full backup and incremental backup 1.1 full-scale backupFull-volume data is all the data in the database, and a full backup is the backup of all the data in the database.Back Up all libraries:mysqldump -uroot -p123456 -S /data/3306/mysql.sock -F -

MySQL Learning--sql query statement (connection Query & subquery) (iii)

One: Connection query:Connection query is to connect two or more tables according to a certain condition, select the required data, the connection query query two or more tables at the same time, when there are fields representing the same meaning

High Performance MySQL Reading Notes-query performance optimization, high performance mysql

High Performance MySQL Reading Notes-query performance optimization, high performance mysql For high-performance database operations, it is not enough to design the optimal database table structure and build the best index. You also need to design

170727. mysql Query performance optimization

MySQL Query performance optimizationThe optimization of MySQL query performance involves many aspects, including library table structure, establishing reasonable index and reasonable query. The library table structure includes how to design

Analysis of the case of English letters in Mysql query _mysql

MySQL database in the query, sometimes the English letter case sensitive, sometimes not, mainly by the MySQL character validation rules of the setting of the decision, usually by default is not supported uppercase and lowercase sensitive. 1. What

MySQL Query case sensitivity problem analysis

MySQL Query case sensitivity problem analysishttp://blog.rds.aliyun.com/2014/05/06/rds%e4%b8%ad%e7%9a%84mysql%e5%a4%87%e4%bb%bd%e6%81%a2%e5%a4%8d/MySQL Query case sensitivity problem analysisApril 30, 2014 dba released reply MySQL

High-performance MySQL reading notes-query performance optimization

For high-performance database operation, it is not enough to design the optimal library table structure, and to establish the best index, but also need reasonable design query. If the query is poorly written, high performance cannot be achieved even

Installing MySQL in Linux and solutions to some common problems _ MySQL-mysql tutorial

1. download MySql 1. download MySql Open http://www.mysql.com/downloads/mysql/#downloads download in browser My downloaded version is Red Hat 5 version of http://www.mysql.com/downloads/mirror.php? Id = 407552 Upload the file to the server, or

Slow query log in MySQL

First we look at the log in MySQL, mainly includes: error log, query log, slow query log, transaction log, binary log;Logs are an important part of the MySQL database. The log file records the changes that occurred during the MySQL database

MySQL Slow Query Log (Slow Query Log), mysqlslow

MySQL Slow Query Log (Slow Query Log), mysqlslow Like most relational databases, log files are an important part of MySQL databases. MySQL has several different log files, such as error log files, binary logs, common logs, and slow query logs. These

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