MySQL

First, create a stored procedureCreate a stored procedure (a)' Hello world '; END; // Execute stored procedure call Proc1 ();Basic form of creating stored procedures| Out | InOut] Param_name typecharacteristic parameter has multiple values: LANGUAGE

Environmental information------------------------------------------------------------RHEL 6-x86_64Yum (if Yum is not installed, please install Yum First, refer to : Installation and source configuration )----------------------------------------------

InnoDB and MyISAM are the two most common table types used in MySQL, the basic difference being that the MyISAM type does not support advanced processing such as transaction processing, and InnoDB type support. However, the MyISAM type of table

Installation Steps- useradd MySQL->cd/tmp;tar-xzf mysql-version-os.tar.gz-c/usr/local->cd/usr/local;mv Mysql-version-os MySQL->chown-r root.root MySQL->mkdir-p/data/db/mysql/3306->chown

Windows command line MySQL LoginWhat's wrong? How is unknown database ' root '?No space after-p, the direct loss of the password is OK.Recommend-p after the direct return, and then according to the prompt to enter the password, so that others can

Problem Description: Do the master and slave of MySQL, have not the decision from separation, cause colleague in MySQL from server performed write operation, cause out of sync (show slave status\g;slave_sql_running:no)Workaround:1,Mysql > Slave stop;

1. parameter file2. log filesError log file Xxx.err file (xxx typically represents host name)Slow query log file 1). Typically, you set a threshold to log SQL statements that exceed the value of the execution time to the slow query logYou need to

MySQL is a relational database management system developed by the Swedish MySQL AB company, currently owned by Oracle Corporation. MySQL is the most popular relational database management system, and in Web applications MySQL is one of the best

Using the old version of the MySQL client navicate 8, the MySQL server with the mysql5.6 version, in the revision of the engine when the version is incorrect;MySQL error ' Type=myisam 'Workaround:ReplaceType=myisamWithEngine=myisamThe problem was

The field of a table has id,uid,name, where ID is self-increment,CREATE TRIGGER trigger_insert_productAfter INSERT on aFor each ROWBEGINInsert into B (uid,name)Select New.id as db_goods_id,New.uid, New.name;ENDThe above trigger when the Insert event

CREATE TABLE table_name (ID int unsigned primary key auto_increment,Username varchar (+) NOT NULL,Nickname varchar (+) NOT null default ' anonymous ',Unique key (username));CREATE TABLE IF not EXISTS ' test ' (' id ' int (ten) unsigned not NULL auto_

DELIMITER $$CREATE PROCEDURE ' DELREPEATCA ' ()BEGINDECLARE tally INT DEFAULT 0;SELECT COUNT (Rs.c_ca) to tally from--------assignment(SELECT COUNT (C_ca) as C_ca from T_caGROUP by C_ca have COUNT (1) > 1) RSWhile tally>0 do--------loopIF (tally>0)

1, this is relatively simple: in the phpMyAdmin has provided650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/43/6B/wKiom1PaXc3AwjhsAAH4kuIwJcU151.jpg "title=" 1.jpg " alt= "Wkiom1paxc3awjhsaah4kuiwjcu151.jpg"/>2. When the table is designed

Home page of http://blog.csdn.net/uestc_huan/article/category/536350 Bo Masterhttp://blog.csdn.net/uestc_huan/article/details/6071081 Blog AddressThis article does not explain how MySQL server parameters are set from a DBA perspective, but from the

First, sqlite3  use 1, import sqlite3  confirm whether the system installed 2, into the current project directory, cmd run python, into the command line mode 3, Import sqlite3,    sqlite3.connect (' {path\name.db} ')   #大括号内表示自定义, real case No curly

Mysql is case insensitive) The following table is used to differentiate the sensitivity of mysql to Case sensitivity in windows and linux by default. Operating System Table Name Variable name Field Value Windows

Note when using MySQL MySqldump command to export data, mysqlmysqldump A problem occurred when I used the mysqldump command to back up data today.At the beginning of the migration to the mysql database in the Discuz 7 Forum, everything went smoothly

Create function example of MySQL user-defined FUNCTION, createfunction mysql>mysql> delimiter $$mysql>mysql> CREATE FUNCTION myFunction-> (in_string VARCHAR(255),-> in_find_str VARCHAR(20),-> in_repl_str VARCHAR(20))->-> RETURNS VARCHAR(255)-> BEGIN-

Enable remote logon for mysql Sometimes, because the database and website are placed in different IP Addresses During website construction, mysql needs to be remotely connected using a program, while mysql is secure, by default, you cannot connect