MySQL

A detailed description of the MySQL UUID functionThere are two types of tools that can be used to generate unique value properties in MySQL: the UUID () function and the self-increment sequence, so what is the difference between the two? We compare

1,Database backup TypesAccording to the database size backup, there are four types, respectively applied to different occasions, the following brief introduction:1.1Full BackupThis is the way most people use it to back up the entire database,

1. While LoopDELIMITER $$DROP PROCEDURE IF EXISTS' Sp_test_while ' $$CREATE PROCEDURE' Sp_test_while ' (inchP_numberINT, #要循环的次数inchP_startidINT#循环的其实值)BEGIN DECLAREV_valINT DEFAULT 0; SETV_val=P_startid;outer_label:BEGIN#设置一个标记 whileV_valP_number

1. Error descriptionOrg.hibernate.exception.SQLGrammarException:error executing Workat Org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert (sqlexceptiontypedelegate.java:80) at

Install MySQL Latest version 56install mysqlStart errorben:~ soul$ which mysql/usr/local2002tolocalthrough socket ‘/tmp/mysql.sock‘ (2)SolutionsRuntothe MySQL monitor. endwithoridis1version5.6.26 HomebrewSet MySQL self-boot settings mysql root

1, Transaction commit mode modification: Modify the database submission mode for 0[ manual submission ]memset (SQL, 0x00, sizeof (SQL));memcpy (SQL, "set autocommit=0;", 17);if (mysql_query (sock, SQL)) {sprintf (g_actrcmsg, " shutdown autocommit

Today, when parsing dedecms, the MySQL time field found in Deder is usedint (notNULLDEFAULT'0';Then found this article on the Internet, it seems that if the time field has to participate in the operation, with int better, one does not have to

MySQL study use of--mysql tools (PhpMyAdmin)System environment: RedHat EL6Database: MySQL 5.6.4-M7PHPMyAdmin is aPHPwritten bysoftware Toolsis based on PHP, and is structured in a web-base waywebsiteon the hostMySQLof theDatabase Managementtools

I. Using String functions1. Combining the String Functions CONCAT () and CONCAT_WS () 1.1 Functions CONCAT () the CONCAT () function joins the passed arguments to return the merged string type data. If one of the parameters is null, the return value

Log in with the root user:Using the GRANT statement:1. Add a user admin and authorize access via local machine (localhost), password "something"Mysql>grant all privileges on * * to [e-mail protected] identified by ' something ' with GRANT option;2.

Original address: http://blog.csdn.net/feihong247/article/details/7885199, MySQL partition introductionDatabase partitioning Database partitioning is a physical database design technique. Although partitioning technology can achieve many effects,

First off MySQLStart MySQL using the command line (typically to find the Mysql.ini file)On Windows Mysql.ini files can be seen by looking at the current MySQL process parameters, specific methods point to thisAt the start of the MySQL command line,

Yesterday when the backend program read the database information, the Log Report related data table can not read and write data, into the MySQL database found table './wordpress/wp_posts ' is marked as crashed and should be repaired Error because

MySQL command line export database: 1, go to the Bin folder in the MySQL directory: cd MySQL to the Bin folder directory as I entered the command line: CD C:\Program files\mysql\mysql Server 4.1\bin ( or add the directory directly to the Windows

Preparation: 1, download Mysql-cluster-gpl-7.3.8-1.el6.x86_64.rpm-bundle.tar: Http://mirrors.sohu.com/mysql/MySQL-Cluster-7.3/MySQL-Cluster-gpl-7.3.8-1.el6.x86_64.rpm-bundle.tarExtract:[Email protected] files]#Tar-XVF mysql-cluster-gpl-7.3.8-1.

Freeradius + pptpd + mysql VPN Service System in Ubuntu, freeradiuspptpd /* The following operations are performed on the radius server */# update the source sudo apt-get update # install Mysqlsudo apt-get install-y mysql-server mysql-client #

CentOS6.6 32-bit Minimal version: Install Nginx Mysql PHP Memcached and centos6.6nginx CentOS is a free and stable Linux version released by Red Hat. Minimal is used in enterprise server applications, because Minimal is the CentOS "Purest" server

Detailed description of the usage of the WHERE clause in MySQL, detailed description of the mysqlwhere clause We can see that the SQL SELECT command is used to obtain data from the MySQL table. We can use the filter results in the WHERE clause of a

Explore n in char/varchar (n): number of characters or bytes, number of varchar bytes [Problem source] When I display the database table designed, yu asked me, why is the top_info field of your top_info defined type varchar (100) 100, how many

Data Structure and algorithm principles behind MySQL indexes (I) This article takes MySQL database as the research object and discusses some topics related to database indexes. In particular, MySQL supports many storage engines, and various storage