mysql random row

Use Rand () in MySQL to generate random numbers with random numbers and random name strings.Preface:The RAND function returns a random floating point value ranging from 0 to 1.0. If an integer parameter N is specified, it is used as a seed value.1.

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

The RAND function returns a random floating point value ranging from 0 to 10. If an integer parameter N is specified, it is used as a seed value. I. friend's problem is described as follows: a stored procedure is used to insert 100 data into the

Create a role random name (mysql extraction random records) and mysql cursor usage, mysql cursor I have encountered some problems in development recently. I have forgotten the solution here. 1. Currently, when creating a game role, it basically

1. Date Time function Time Conversion second function: Time_to_sec Mysql> Select Time_to_sec (' 01:01:01 ');+-------------------------+| Time_to_sec (' 01:01:01 ') |+-------------------------+| 3661 |+-------------------------+1 row in Set (0.00

实现MySQL读写分离部署集群基础环境1 realizing MySQL read-write separation1.1 QuestionsThis case requires the configuration of 2 MySQL server +1 proxy Server, to achieve the MySQL agent read and write

Install mysql in centos5.8 1. Install mysql yum Source Download the rpminstallation package of mysql's latest yumsource from http://dev.mysql.com/downloads/repo/yum/   wget http://repo.mysql.com//mysql57-community-release-el6-9.noarch.rpm Use yum

Set Change root passwordNote: How to change the root password, about the root user is the MySQL Super administrator user, it is similar to the root user inside the Linux operating system, to distinguish between the root of MySQL and the system root

Recently encountered in the development of some problems, here to record the solution to the method, has been prepared to forget.1, now create the role of the game, basically support the role of the name of the random, previously this function in

MySQL queries random data in four ways and performance comparison below from the following four solutions to analyze their respective advantages and disadvantages. Solution 1:SELECT * FROM 'table' order by rand () LIMIT 0, 1; This method is very