sql if

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Examples of implementations of interfaces in Python

Interface Basics: Simply say the interface test, now commonly used 2 kinds of interface is the HTTP API and RPC protocol interface, today mainly said:HTTP API interface is to go HTTP protocol through the path to distinguish the call method, request

PHPSQLite _ PHP Tutorial-php Tutorial

PHPSQLite class. Copy the code as follows :? * ** SQLite class * 2009-5-6 * connected to HiChina ** classSQLite {current SQL command public $ _ mQueryStr; current result public $ _ mResultnull; SQLi The code is as follows: /*** SQLite class* 2009

Php database operation code (add, delete, modify, query) _ PHP Tutorial

Php database operation code (add, delete, modify, query ). The basic process of database operation is: 1. connect to the database server 2. select the database 3. execute the SQL statement 4. process the result set 5. print the operation information.

Use a mysql memory table to replace the phpsession class

Replace the phpsession class with the mysql memory table. you can test the effect on your own. The code is as follows: /** @ Usage: use some other storage method (mysql or memcache) instead of php sessoin @ Author: lein @ Version:

Introduction to The ADOdb class library in PHP (1)

Preface why use the database class library? A common mistake for Beginners (or even non-beginners) is the lack of future considerations when developing applications. If one day your program needs to use other databases, do you still need to write a

Phpmysqlpdo operations-PHP source code

Phpmysqlpdo operation class provides mysql addition, deletion, modification, query, and other operations [Code] [PHP] code Class pdomysql {public static $ dbtype = 'mysql'; public static $ dbhost = ''; public static $ dbport =''; public static $

Php development code in memcached and mysql master-slave environments

The general practice of a large site is to use memory as a database (memcached), and a good read/write splitting backup mechanism (mysql master/slave). in such an environment, how can we develop PHP. Memcache The code is as follows: $ Memcached =

How to restrict visitors' ip addresses (PHPBB Code)

How to restrict the visitor's ip address (PHPBB Code) Code :? Php *************************************** * ********************************** admin_user_ban.php *------------------- * begin: tuesday, Jul31, 2001 * copyright :( C) 2001ThephpBBGroup *

MYSQL database in PHP and mysql database

MYSQL database in PHP and mysql databaseMYSQL database Introduction 1. What is a database? A database is an ordered set composed of a batch of data. This set is usually saved as one or more files related to each other. 2. What is a relational

[Original] PHP development in Multi-memcached and mysql master-slave environments: Code details

. Today is the last day in this company. The mood is not good.Therefore, the general practice of a large station is to use memory as a database (Memcached). And a good backup mechanism for read/write separation (mysql Master/Slave)In this

Mysql operation library 1.2

After a small change, the latest version is released :? Php ** + ---------------------------------- * MySQL operation class library + ------------------------------------ * @ author Ma Yun + ---------------------------------- * @ version1.2 (2013-5-3

Mysql-udf-http Efficiency Test note

I can see the post on "http/rest client" on the blog of Zhang banquet. I will skip all the installation steps. Next I will go directly to the test stage: virtual machine.Copy codeThe Code is as follows:[Root @ localhost ~] # Uname-Linux sunss 2.6.18-

Examples of JSP deletion and modification functions in MVC mode are described in detail.

Examples of JSP deletion and modification functions in MVC mode are described in detail. The example in this article describes how to delete and modify JSP functions using the MVC mode. Share it with you for your reference. The details are as

PHP database operations Class/Class-PHP source code

The following is a database operation code commonly used in self-developed applications. There are two files below: configuration files and operation database files, finally, we briefly list the call methods of this example class. The following is a

Is php processing a paging sorting in mysql?

Let me ask you a question. Suppose my record is like this: {code ...} I want to display the result after sorting, and sort the same name and a large number of names at the top, as shown in the following code: {code ...} if there is no paging, I know

SQL statement for importing and exporting Excel Data

Importing data from an Excel file to a SQL database is simple. Importing data from an Excel file to a SQL database is simple. -- Importing data from an Excel file to a SQL database is simple. Use the following statement: /* =========================

Two Methods of backup/recovery in MySQL database

The following describes two methods for restoring MySQL database backup. Method 1: query ($ SQL) ;}combine the generated temporary backup files $ outfiledate (Y-m-d ).. SQL; if (file_exists ($ dbdir. $ outfile) @ unlink ($ dbdir. $ outfile); $

How to restrict visitors' ip addresses (PHPBB code)

How to restrict the visitor's ip address (PHPBB Code) Code: /*************************************** ************************************* Admin_user_ban.php*-------------------* Begin: Tuesday, Jul 31,200 1* Copyright: (C) 2001 The phpBB Group*

How to restrict visitors' ip addresses (PHPBB Code)

How to restrict the visitor's ip address (PHPBB Code) Code :? Php /************************************** * ************************************ admin_user_ban.php * ------------------- * begin: tuesday, J label: phpBB Code: /************************

A class that replaces phpsession with a mysql memory table-php Tutorial

A class that replaces phpsession with a mysql memory table /** * Session mysql memory table @ Usage: use some other storage method (mysql or memcache) instead of php sessoin @ Author: lein @

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