mysql like query example

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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

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

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 like query string Example Statement

MySQL provides standard SQL mode matching and an extended regular expression mode matching format based on Unix utilities such as vi, grep, and sed.I. SQL Mode SQL pattern matching allows you to use "_" to match any single character, while "%"

MySQL open query caching method and query example

Turn on caching, set cache size, and implement the following: 1, modify the configuration file, Windows under the My.ini,linux is my.cnf; On the last append to the configuration file: The code is as follows Copy Code

MySQL General query log and slow query log analysis

Logs in MySQL include: error log, binary log, General query log, slow query log, and so on. Here is the main introduction of the more commonly used two features: General query log and slow query log.1) General query log: Records established client

MySql basic query, connection query, subquery, and regular expression query _ MySQL-mysql tutorial

This article introduces four database query methods by combining text and text: Basic query, connection query, subquery, and regular expression query, for more information, see query data to obtain the required data from the database. Data query is

MySQL Common instructions, java,php programmers, database engineers must. Programmers Xiaoice Common Data collation

MySQL常用指令,java,php程序员,数据库工程师必备。程序员小冰常用资料整理MySQL common commands (for reference)The most common display commands are:1. Display the list of databases;2. Display the data table in the library:Use MySQL;Show tables;3, display the

Common query statements for mysql databases (Single Table query)

1. Use the select statement to query the select * from data table name of a data table. 2. query the select Field 1 and 2from data table of one or more fields in the table; 3. query the specified data in the table. select * from the data table name

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