mysql auto

MyISAM data table After a record with the maximum number is deleted, the number cannot be reused. You can use the "auto_increment = N" option to specify an auto-increment initial value when creating a table. You can use the alter table table_name

Mysql auto-incrementing column leads to duplicate primary key issue analysis..., mysql primary key A few days ago, the development of shoes reported a problem of using the load data infile command to import data primary key conflicts. After analysis,

Reference: www. clusterdb. commysqlreplication-and-auto-failover-made-easy-with-mysql-utilities Environment Introduction: master: demoenv-trial-1slaves: demoenv-trial-2demoenv-trial-31. install PerconaServer on all servers: $

**************************************** ****************** The first part is to build a multi-mysql service on a server. **************************************** ****************** I. xuyan There is a mysqld_multi command in Mysql that can be used

Environment Introduction:Master:demoenv-trial-1Slaves:demoenv-trial-2 demoenv-trial-3 1. Install Percona server, on all servers:$ sudo yum install http://www.percona.com/downloads/percona-release/percona-release-0.0-1.x86_64.rpm$ sudo yum install

CentOS6.7 using a non-root user (normal user) compile and install the MySQL database and implement the MySQL database service random auto-start using the Shell Script timed task mode1. About MySQL?MySQL is a relational database management system

MySQL has become one of the most widely used databases on the network, especially for Web applications. it occupies the absolute advantage of small and medium applications. All of this comes from its small and easy-to-use, secure and effective, open

Run multiple MySQL services on the same machine Run multiple MySQL services on the same machine **************************************** ****************** The first part is to build a multi-mysql service on a server. *****************************

1 description (1) for the MyISAM table, if the auto-increment column is updated using UPDATE, if the column 20540 is repeated with the existing 20540, an error will occur. if the column is greater than the existing maximum 20540 ;, the

Precautions for using the AUTO_INCREMENT column in MySQL: update auto-incrementing Column1. Description (1) For the MyISAM table, if you use UPDATE to UPDATE the auto-incrementing column, if the column value is the same as the existing value, an