标签： mysql

看懂mysql执行计划–官方文档

看懂mysql执行计划–官方文档

dawei MySql 2020年8月31日

原文地址：https://dev.mysql.com/doc/refman/5.7/en/explain-output.html9.8.2EXPLAIN Output FormatTheEXPLAINstatement provides information about the execution plan for aSELECTstatement.EXPLAINreturns a row of information for each table used in

mysql replication principle–转

mysql replication principle–转

dawei MySql 2020年8月31日

原文地址：http://www.codeweblog.com/mysql-replication-principle/1, the replication processMysql replication (replication) is an asynchronous replication, from a Mysql instace (called Master) to another Mysql instance (call it Slave). Implem