mysql if else

The great god says: In sql, you can use if else without casebelow to see, specifically why, did not figure out if there is a great God to know to provide the following information:MySQL can be used as an expression, or as a Process control statement

MySQL builds a series of multiple instances. The so-called multi-instance is to build and run multiple MySQL instances on one server. each instance uses different service ports and listens through different sockets. physically, each instance has an

Before is cacti monitoring MySQL, many parameters monitoring is not particularly clear, think about looking for Zabbix monitoring.Write a configuration file that monitors MySQLUserparameter=mysql. Ping,mysqladmin -uroot -p123456  ping|grep alive|wc -

MySQL builds a series of multiple instances. The so-called multi-instance is to build and run multiple MySQL instances on one server. Each instance uses different service ports and listens through different sockets. Physically, each instance has an

MySQL常用指令，java，php程序员，数据库工程师必备。程序员小冰常用资料整理MySQL common commands (for reference)The most common display commands are:1. Display the list of databases.show databases;2. Display the data table in the library:Use MySQL;Show tables;3, display the

The so-called multi-instance is to build and run multiple MySQL instances on a server. Each instance uses different service ports and listens through different sockets. Physically, each instance has an independent parameter configuration file and

Rotor http://www.linuxidc.com/Linux/2015-06/119354.htmDirectoryPreparatory workOperating EnvironmentConfirm your version of the installationDownload MySQLInstall MySQLPreparing the installation EnvironmentCompiling and installingConfigure

MySQL Stored Procedure example. You cannot use begin end in if else. Otherwise, an Error Code: 1064 is reported to solve the Error Code: 1064You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the

Case has two formats. Simple case function and case search function.--Simple case function when ' 1 ' then ' Male ' when ' 2 ' Then ' Women ' Else ' other ' end--case search function case when sex = ' 1 ' Then ' Man ' when sex = ' 2 '

For content-driven Web sites, the key to the quality of the design is the relational database. In this tutorial, we have built our database using the MySQL relational database management system (RDBMS). MySQL is a popular choice for Web site