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MySQL "on duplicate key update" Syntax
Insert into .. on duplicate key to update multiple rows
Http://dev.mysql.com/doc/refman/5.1/zh/sql-syntax.html#insert
MySQL "on duplicate key update" Syntax
If the on duplicate key update
MySQL "on DUPLICATE KEY UPDATE" syntaxIf an on DUPLICATE KEY UPDATE is specified at the end of the INSERT statement, and the row is inserted to cause duplicate values in a unique index or primary KEY, UPDATE is performed on the row where the
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
1. download MySql
1. download MySql
Open http://www.mysql.com/downloads/mysql/#downloads download in browser
My downloaded version is Red Hat 5 version of http://www.mysql.com/downloads/mirror.php? Id = 407552
Upload the file to the server, or
Ext.: http://www.jb51.net/article/39255.htmMySQL "on DUPLICATE KEY UPDATE" syntaxIf an on DUPLICATE KEY UPDATE is specified at the end of the INSERT statement, and the row is inserted to cause duplicate values in a unique index or primary KEY,
MySQL "on DUPLICATE KEY UPDATE" syntaxIf on DUPLICATE KEY UPDATE is specified at the end of the INSERT statement, and the insert row causes duplicate values to occur in a unique index or primary key, UPDATE is performed on the row where the
In-depth analysis of mysql "on duplicate key update" syntax, mysqlduplicate
Mysql "on duplicate key update" SyntaxIf the on duplicate key update is specified at the end of the INSERT statement and the DUPLICATE value appears in a UNIQUE index or
Install MySQL1. Download the MySQL Installation FileThe following two files are required to install MYSQL:MySQL-server-5.1.7-0.i386.rpm
To download the above two RPM files, locate the "server" and "client programs" items and find the items
MySQL "on DUPLICATE KEY UPDATE" syntaxif on DUPLICATE KEY UPDATE is specified at the end of the INSERT statement and the row is inserted causing duplicate values in a unique index or primary key, the update is performed on the row where the
Mysql "on duplicate key update" syntaxIf the on duplicate key update is specified at the end of the INSERT statement and the DUPLICATE value appears in a UNIQUE index or primary key after the row is inserted, UPDATE is executed ON the row with the
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