create schema mysql syntax

Principles and Application of pt-online-schema-change, ptonlinechangeschema If it is reprinted, please indicate the source of the blog: www.cnblogs.com/xinysu/. The copyright belongs to xiaoradish in the blog garden. Thank you for your

Create and modify MySQL database syntax, mysql database syntax 1. Create Database Syntax: CREATE {DATABASE | SCHEMA} [if not exists] db_name[Create_specification [, create_specification]...] Note:CREATE DATABASECreate and name a database. If you

1. Create DATABASE syntax:CREATE {DATABASE | SCHEMA} [IF not EXISTS] Db_name[Create_specification [, Create_specification] ...]Note: CREATE DATABASE is used for creating databases and naming them. If you want to use CREATE database, you need to get

MySQL Study Notes summary, mysql Study Notes Slow SQL: A Query whose execution time exceeds the specified time range is called a slow query.In MySQL, how does one record slow SQL statements?A: You can set the following information in my.

1. Use the create database or create schema command to create a database. Create database name create database if not exists database Name, if the ifnot exists clause is used, the following error information is displayed: showdatabases; www.2cto.com:

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Tip: You 'd better back up your data before installing any new version of software. Although mysql has provided the best quality services, you should back up your data when you use the software test release version. In general, when upgrading from

MySQL Cache Optimization (continued) and mysql Cache Optimization MySQL is cached everywhere. When can I read the MySQL source code and analyze in detail how the cache is used. This part mainly optimizes various explicit cache: Query Cache

Ext.: http://www.cnblogs.com/TsengYuen/archive/2012/01/11/2319034.htmlMySQL Common command lineMySQL often uses the command line Daquan, the start of MySQL work and stopnet stop MySQLnet start MySQLThis machine: mysql-u root-p Enter------> enter to

Slow sql: Queries that run longer than a given time range are called slow queries.How do I record slow sql in MySQL?A: You can set the following information in MY.CNF: [Mysqld] ; Enable the slow query log, default