PHP MySQL Transaction rollback operation instance

Only InnoDB and BDB types of data tables in MySQL can support transaction processing! Other types are not supported! The code is as follows Copy Code Public Function Insertuser ($userArray) {foreach ($userArray as $key =>

PHP to convert text database to MySQL database

The code is as follows Copy Code Require_once ' config.php ';$action = Empty ($_get[' action ')? ': $_get[' action '];$id = Isset ($_get[' id ')? $_get[' id ': 0;if (empty ($action)) {//List$result = "SELECT * from Posts ORDER by PID

Simple PHP operation MySQL database implementation

One, the connection database Database variable file: connectvars.php The code is as follows Copy Code ServerDefine (' Db_host ', ' 127.0.0.1 ');User nameDefine (' Db_user ', ' root ');PasswordDefine (' Db_password ', '

PHP MySQL transaction processing implementation program

Recent project software upgrades to support transactions, make an example for everyone to learn the referenceEnvironment MySQL 5.2/php 5The table type that supports transactions requires InnoDB The code is as follows Copy Code

Php+mysql member System Landing is the right to judge

First look at the configuration file   code is as follows copy code //Start session Session_Start (); //Database Tutorial connection $conn =mysql tutorial _connect (' localhost ', ' root ', ' Hu Jintao ');

CentOS 6.5 Set up the MySQL master-slave synchronization process record

The MySQL master and slave function was set up on CentOS 6.5, and recorded. Server 1 (primary)ip:192.168.1.201System version: CentOS 6.5MySQL version: MySQL 5.5 Server 2 (from)ip:192.168.1.202System version: CentOS 6.5MySQL version: MySQL 5.5 The

How to modify the MySQL password (root password)

method One , everyone most commonly used phpMyAdmin modification method, first we want to log in phpMyAdmin We can see the change password Enter your own new password Click on execution to modify the password successfully method Two , SQL

MySQL Export xls file method

Operating in PHP The code is as follows Copy Code Include (' db/db.php '); Include a library class$db = new db ();$result = mysql_query (' select * market_sig into outfile ' D:product3.xls; ');Var_dump ($result);?>

MySQL server query slow reason analysis and resolution method

It is often found that developers look up the statements that are not indexed or limit N, these no statements will have a significant impact on the database, such as a large table of tens of millions of records to scan all, or do not stop doing

Multiple table associations in MySQL delete data while deleting the associated data

Category (Column information table) and news (press data sheet). The ID (column number) field in the category is used as the primary key (primary key) for the table. The only information that identifies a column.The ID field in news is the primary

The query_cache misunderstanding of MySQL is detailed

All along, for the query_cache of MySQL, on the internet is popular with this saying, "For MySQL Query_cache key value is the MySQL query, so if there are any differences in query, including more than a space, Will cause MySQL to think it is a

MySQL Regular expression character substitution statement

The code is as follows Copy Code Update comment set url=if (url REGEXP ' test.yahoo.com.cn ', replace (URL, ' www1.www.111cn.net ', ' www.sina.com '), replace ( URL, ' www2.yahoo.com ', ' www.sina.com ') where 1=1;Update comment Set

Several ways to solve the MySQL server has gone away

The first method: Of course increase your wait-timeout value, this parameter is set in MY.CNF (My.ini under Windows), my database load is slightly larger, so I set the value to 10, (this value is the unit of seconds, It means that when a database

MySQL Database import Import code

Let's start with a comma ('), vertical bar (|) Separated data. Many people would say that using The code is as follows Copy Code Mysql-uuser-ppwd dbname-e "$sql" For export.where $sql uses The code

Example of generating and displaying data by querying data (based on PHP MySQL)

// TABLECreate table tableurl (Id int (5 ),Sort int (2 ),Click int (6 ),Getday date,Name char (30 ),Link char (40 ),Brief char (50 ),Primary key (id))// XML FILE------------------------------Require ("db. inc. php ");If (empty ($ order )){$ Order = '

Basic MySQL database tutorial

Databases have evolved from a simple collection of data files to today's large database governance systems, which have become an indispensable part of our daily lives. Without the help of databases, many simple tasks will become tedious and even

Build a database-driven website with PHP and MySQL (7)

Now we have a program code that allows users to input a joke and add it to our database. The rest is to add it to the joke display page we have prepared. Because the vast majority of users only want to watch jokes, we do not want to make major

About my MySQL

Today, the website is accessible from databases. Maybe the website you maintain is connected to the MySQL database. MySQL is a relational database management system (RDMS). We know that with the database, your website will jump from a dead static

Free space for php + mysql abroad hostinger. co. uk

Space support:PHP + mysql + ftp is a good learning space.Note address:Http://www.hostinger.co.ukNote that space opening is slow. After all, it is abroad, but there are many advertisements,Ad removalThe following describes how to remove

MB free php + mysql space

Free VMOur bannerless free hosting service runs on the internet forum Byethost to host servers in a centralized manner, so that you can cancel the performance and reliability of paralelled.Our server runs the latest version of PHP, MySQL and Apache

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