MySQL

MySQL CREATE TABLE partition periodicallyI. Stored Procedures-Table partitioning-----------------------------------------------------------------Demand:Create a partition every monthPartition name name format: p201201,p201202 ...---------------------

There was a database error today.Got Error from storage engineCheck, the database file is located on the disk should be OK, should be the database with a temporary directory space is not enoughThe reference disk does not have enough temporary space

Windows MySQL loaded SQLyog-32 bitINSERT into USER VALUES (' 123 ', ' 123 ', ' Purple Xuan ');Database query found to be garbled:Probably because the default format for MySQL is latin1, it is recommended that you create a new database (which is not

Get a random piece of data from a data table with an SQL statement--Rand () gets a random floating point number between 0 and 1--((SELECT Max (ID) from test)-(select min (id) from test)) * RAND () gets to random number--+ (select min (id) FR OM test)

Download and install MYSQL: Download and Installation Guide:http://jingyan.baidu.com/article/597035521d5de28fc00740e6.html  Website:http://dev.mysql.com/downloads/file.php?id=454674    follow the tutorial to install mysql cmd mysql navicat

Install MySQL will not say, online tutorial A, generally canHttp://tech.163.com/06/0206/11/299AMBLT0009159K_3.htmlThat would be nice.Well configured (mostlyModify the php.ini file, start some extensions, put Extension=php_gd2.dll Extension=php_mysql.

Problem descriptionFor example, there are two records in Table1.Name NoA 2,9b 8,10Then there is a string of strings that is 0,1,2,3,4Then, using a SQL, find out the record of No for 2,9.Because there are 2 in the string, there are 2 in the

In a table-related query, especially one-to-many relational table queries, the GROUP_CONCAT function is a useful function that helps us reduce the number of queries to the database and reduce the pressure on the server.But today, using the

Replace into why not? First Delete, after the episode, delete when the full table scan it?Refer to the documentation from the MySQL official network:Http://dev.mysql.com/doc/refman/5.0/en/replace.htmlMySQL uses the following algorithm for REPLACE

MySQL compilation needs cmake, my cmake-2.6.4-5.el6.i686, the latest version is 3.1.0, I will first use 2.6.4 to try? [Email protected] src]#wgethttp//cdn.mysql.com/downloads/mysql-5.6/mysql-5.6.22.tar.gz ? [Email protected] src]#Tar-ZXF mysql-5.6

The 1.MYSQL character set includes two concepts: the character set (CHARACTER) and the checksum rule (COLLATION). A character set is used to define how MySQL stores strings, and a validation rule is used to define how MySQL compares strings. A

1 Modifying a configuration fileRead-only=1(Main library)#read-only=1(Reserve)2 , view master repository statusShow slave status \gShow Master Status\g3 , operation and Standby librarySTOP Slaveio_thread;SHOW processlist;See have read all relay

One: Modify the MySQL configuration file My-default.ini (possibly another name My.ini) add the following (change the original):This is the part that adds the

Before using MySQL is installed when the character set to Utf-8, so very few garbled, today in the Wampserver in the MySQL, found to submit to the database of Chinese garbled, because it is clear that the table used Utf-8, the server also uses Utf-8,

CentOS 7 's Yum source does not appear to be properly installed when MySQL mysql-sever file, need to go to the official web download# wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm# RPM-IVH

1. Export MySQL Databasemysqldump-h[server address native can ignore]-u[user]-p[password-P[MYQL database port]> Export File locationmysqldump-h192. 168.18. -uroot-pmiss-p3307 Mysql>d:\\new.sql2. Import MySQL database filesmariadb[test]>

Today, when working with binaries in the business library, you want to change the number of days that the binaries expire, and if the discovery date is set to 2-bit integers. The following warning will appear. The expiration date number of days

Examples of MySQL startup failure caused by/var/log/pacct files: pacctmysql Without warning, MySQL went on strike. After the mysql. server startup script is used, the mysqld process ends without any prompts. Set mysql. in the server, $

MySQL scheduled task and MySQL task I. Introduction: Mysql is a small and medium database system. Its Event Scheduler, Event sched, is introduced only in mysql 5.1, which is another feature added in MySQL 5.1, it can be used as a scheduled task

Basic MySQL statements# Creating a table# Create table stu (id int primary key, name char (10), age int );# Deleting a table# Drop table stu;# Add# Insert into stu (id, age, name) values (1, 20, 'xiaoming ');# Insert into stu (id, name, age) values (