MySQL

From my mailbag: How does I write a C program to connect MySQL database server? MySQL database does support C program API just like PHP or Perl.The C API code is distributed with MySQL. It is included in the Mysqlclient library and

MySQL gets the current date time functionSource: http://www.cnblogs.com/ggjucheng/p/3352280.htmlGet the current date + time (date + times) function: Now ()Mysql> Select Now (); +---------------------+| Now () |+---------------------+| 2008-08-08 22:2

Mysql> Select - sum( Case whenScore - Then 1 Else 0 End) as '', - sum( Case whenScore>= - andScore the Then 1 Else 0 End) as '60~69', - sum( Case whenScore>= - andScore - Then 1 Else 0 End) as '70~79', - sum( Case whenScore>=

MySQL command line when executing a multi-line command, if the command entered in front of an error, is unable to return the modification, but can be input \c to cancel the front input, but at this time if the front input a lot of things, the direct

1The initial database password is empty.Modify MySQL database password with phpMyAdmin2The first step is to click on the user option in phpMyAdmin.Modify MySQL database password with phpMyAdmin3Select the root localhost user name and click Edit

1. Introduction to Slow Querieshttp://hllnihao.iteye.com/blog/14614722. Pt-query-digest Installationhttp://blog.csdn.net/seteor/article/details/24017913[Email protected]]# wget percona.com/get/pt-query-digest [[email protected]]# chmod u+x

mysql> desc Student;+-------+-------------+------+-----+---------+-------+| Field | Type | Null | Key | Default | Extra |+-------+-------------+------+-----+---------+-------+| ID | Int (11) | NO | PRI | 0 | || NAME | varchar (16) | YES | | NULL | ||

After MySQL 5.6 is installed, the default root user's password is empty, at this time for security needs to change the password is not empty, modify the method is:CMD or mysql 5.6 command line client after landing, enter the commands:Use MySQLUpdate

As mentioned in the previous article, the page after the form was submitted in story.php is story_submit.php, so let's take a look at how story_submit.php finished the post.In the old way, the code first: $query let's go through the code as a whole:7

This article collects in my notebook, because cannot find the original source. Omitted in this, as if who knows can contact me plus.The core is to use the MySQL system table and the "optimize table name " command, the MySQL data table for the space

Mysql Architecture and Mysql Storage EngineMySQL ArchitectureMySQL architecture diagram:1) connectors: refers to the interaction of SQL in different languagesMax_connections is the maximum number of connection limits for the entire MySQL instanceMax_

MySQL has a lot of connector:One of theJ,c++,c is primarily used to develop connected MySQL applications using languages such as java,c++,c.ODBC: Used primarily for universal programs connected to a database on a variety of platform windows,linuxe,

var Generic_pool = require (' Generic-pool '); var pool = Generic_pool. Pool ({    name: ' MySQL ',    max:10,    Create:function (callback) {      &NB Sp var Client = require (' mysql '). CreateConnection ({            Host: ' 127.0.0.1 ',          

1The following tables are available in this database: < ;?PHP/** * By:qingsong * DATE:2015/4/18 0018 * time:22:17*/Header(' Content-type:text/html;charset=utf-8 ');$jieshou= "Qingsong";Define("Connect", @mysql_connect("localhost", "root", "root")

Directory1. Purpose of Backup2. Backup Type3. Backup objects4. Backup Tools5, the general operation of the backup process6, the general operation process of data recovery7. Backup Tools1. Purpose of BackupThe purpose of the backup is to restore and

MySQL restart on each platform:Inux platform and Windows platform MySQL restart methodThe correct way to restart MySQL under Linux:1. mysql installed via RPM packageService mysqld Restart2. mysql installed from the source packageLinux shutdown mysql

(Transferred from Http://3y.uu456.com/bp-f088f739376baf1ffc4fad40-1.html)MySQL supports a large number of column types, which can be divided into 3 categories: numeric type, date and time type, string (character) type.This section first gives an

MySQL Workbench Build table when PK, NN, UQ, BIN, UN, ZF, Ai meaning, behind a few old confused, with the record in this convenient for later check.[Intrinsic column Flags] (basic field type identification)-pk:primary Key (column is part of a PK)

Tutorial on using GTIDs replication protocol and interrupt protocol in MySQL MySQL5.6 has many new features, and many of them are interested in the global transaction sequence number function (GTIDs ). The reason why everyone is very interested in

Optimize Discuz through MySQL! Hot posts turning skills, discuz hot posts Preface: discuz! As a leading Community system, webmasters provide an all-in-one website solution and are open-source (although some code is encrypted ), it has made great