mysql query size

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

This article describes how to query logs and slow query logs in MySQL. It also describes how to use the Mysqldumpslow log analysis tool that comes with MySQL. For more information, see I. query logs Query all the queries in MySQL by using "-- log [=

A basic tutorial on querying logs and slow query logs in MySQL, I. query logs Query all the queries in MySQL by using "-- log [= file_name. Because all the queries, including all the select statements, are recorded, and the size is relatively large,

Essays-66 Articles-0 comments-MySQL slow query (ii)-Pt-query-digest detailed slow query log one, Introduction Pt-query-digest is a tool for analyzing MySQL slow query, it can analyze Binlog, Gene RAL Log, Slowlog, can also be analyzed via

1 , MySQL query cacheMany database products are able to cache the execution plan of a query, and the SQL parsing and execution plan generation phases can be skipped for the same type of SQL. MySQL also has a different type of cache: Cache the full

-- Add users and groups [root @ zlmlocal] groupadd [root @ zlmlocal] useradd-gmysql-ssbinnologin-doptmsyqlmysql -- create a directory [root @ zlmlocal] mkdirdatamysqlmysql_3306 {data, l -- Add users and groups[Root @ zlm local] # groupadd [Root @

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| Reference | Reference Manual | cache | Chinese MySQL 4.1.0 chinese reference manual---dog (heart sail) Translate MySQL Reference Manual for version 4.1.0-alpha. 6.9 MySQL Query Cache Starting with MySQL 4.0.1, MySQL server has an

MySQL Query execution process MySQL Query execution path 1. the client sends a query to the server; 2. the server first checks the query cache. if the cache is hit, the results stored in the cache are immediately returned. Otherwise, the system

Recently, I have been asked questions about MySQL Query Cache. I just want to sort out some MySQL Query Cache content for your reference. As the name suggests, MySQL Query Cache is used to Cache Query-related data. Specifically, the Query Cache