mysql show plan

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 execution Plan explain detailed 2015-08-10 13:56:27Category: MySQLThe explain command is the primary way to see how the query optimizer decides to execute a query.This feature has limitations and does not always tell the truth, but its output

Explanation of MySQL execution plan, mysql execution planExplain syntax Explain select ...... Variant: 1. explain extended select ...... Decompile the execution plan into a SELECT statement and run show warnings to obtain the query statement

Henan College of Traditional Chinese Medicine Course Design Report of MySQL Database Management  Title: Research and Implementation of MySQL Clusters       Completion date:2012January 1, December 31   Contents 1. Course Design overview 3 2. research

Explain syntax EXPLAINSELECT ...... Variant: 1. EXPLAINEXTENDEDSELECT ...... Decompile the execution plan into a SELECT statement and run SHOWWARNINGS to obtain the query statement optimized by the MySQL optimizer. 2. EXPLAINPARTITIONSSELECT ......

MySQL Execution plan Optimizing queries with explain Explain output format Extended Explain output format Get execution plan information for a named connection Estimating Query Performance EXPLAIN Syntax

1. Explain extendedselect... decompile the execution plan into a SELECT statement and run showwarnings to obtain the query statement optimized by the MYSQL optimizer. 2. explainpartitionsselect... information contained in the explain execution plan

Explanation of MySQL execution plan Explain syntax Explain select ...... Variant:1. Explain extended select ...... Decompile the execution plan into a SELECT statement and run show warnings to obtain the query statement optimized by the MySQL

Original source: MySQL 5.5 Reference ManualPart of the translation: "mysql_5.1 Chinese reference Manual"Reprint please specify the original link http://www.cnblogs.com/lenagt/archive/2012/06/06/2538201.html Thank you.---------------------------------

1. Enter the Mysqladmin processlist into the Mysql/bin catalogue; 2. Start MySQL, enter show Processlist; If you have SUPER permissions, you can see all of the threads, otherwise you can only see the thread that you originated (this is the current