variables mysql

Mysql variables are divided into local variables @ and global variables @. They are all in different sizes, but the usage of the two variables is slightly different. Next I will introduce the production usage. Commonalities: case-insensitive, all

Differences between mysql status and variables First, you can use the following two commands to view the corresponding mysql system parameters.Show status like '% abc % ';Show variables like '% abc % '; However, many people do not understand the

[User @ localhost] $ ls mysql-5.1.51.tar.gz Mysql-5.1.51.tar.gz [User @ localhost] $ su Password: # Cp mysql-5.1.51.tar.gz/usr/local/src/ [Root @ localhost] # cd/usr/local/src/ [Root @ localhost SRC] # groupadd-r MySQL [Root @ localhost SRC] #

1. Full backup and incremental backup 1.1 full-scale backupFull-volume data is all the data in the database, and a full backup is the backup of all the data in the database.Back Up all libraries:mysqldump -uroot -p123456 -S /data/3306/mysql.sock -F -

In-depth MySQL User-Defined variables: Usage Details and use cases, mysql Usage DetailsI. Preface In the previous work, I received several user feedback on the points missed in the super topic. After reading and analyzing the source code, it is

MySQL experience 6-MySQL language structure-constant, variable bitsCN.com 1. in MySQL database, the SQL language consists of the following parts. (1) Data Definition Language (DDL ). It is used to execute database tasks and perform create, drop,

I am used to installing MySQL in binary format. today I am eager to install an RPM Package for MySQL. I did not expect that I have encountered some problems. I will share with you the problems I encountered. first, I will download the installation

Tag: color is medium tar local str local SSI GlobalDescription: Now on the market defined variables of the tutorial and books are basically stored procedures are described, but the stored procedure variables can only be used in begin...end block,

1. In the MySQL database, the SQL language consists of the following parts. (1) Data Definition Language (DDL ). It is used to execute database tasks and perform create, drop, alter, and other operations on the database and various objects in the

in the database, variables are divided into system variables (with ' @@ ' start ') as well as user-defined variables. System variables are divided into global system variables and session system variables, and static variables belong to special