retrieving data from mysql using php

[Serious when I come in] the prompt "Warning: mysql_fetch_array (): suppliedargumentisnotavalidMySQLresult" is displayed when I fetch data from mysql. this is a question that I have hundreds of times and google has queried countless times, probably

MySQL Format statement specificationHow do I log into your database?Example!If you are compiling the installation of the flowers, then you have to compile the installation of the directory to go, my is installed into the/usr/local/mysql database: Cd/

"PHP" MySQL gets the primary key for inserting data (self-increment id), MySQL primary key To prevent primary key collisions, the self-increment (auto_increment) field is often used when designing db. So before inserting the data, we often don't

PHP 5.2 Memory Manager ? What's new in PHP V5.2, part 1th: Using the new memory manager Track and monitor PHP memory like tracking and monitoring uber-nerd Tracy Peterson ([email protected]), freelance writer, consultant Since 1997, Tracy

High Performance MySQL Reading Notes-query performance optimization, high performance mysql For high-performance database operations, it is not enough to design the optimal database table structure and build the best index. You also need to design

Groupadd mysql Create a user group named mysql Useradd-g mysql Create a user named mysql under the mysql user group Gunzip | mysql-VERSION.tar.gz | tar-xvf- Decompress the downloaded .gz File Cd mysql-VERSION Enter the decompressed directory CFLAGS =

This article we mainly share with you the PHP bottom operating mechanism of the detailed, first we will share with you PHP design concept and features, PHP four layer system, etc., hope to help everyone. 1. PHP Design concept and Features

Querying the database from the Web: how the Web Database schema works A user's browser issues an HTTP request that requests a specific Web page, where the form form is submitted to a PHP script file (for example: results.php) for processing After

Querying the database from the Web: how the Web Database schema works A user's browser issues an HTTP request that requests a specific Web page, where the form form is submitted to a PHP script file (for example: results.php) for processing After

For high-performance database operation, it is not enough to design the optimal library table structure, and to establish the best index, but also need reasonable design query. If the query is poorly written, high performance cannot be achieved even