Clear explanations and tutorial exercises are provided on SQL Server connection; providing port number; selecting database; running SQL statements; checking execution errors; looping through query result; looping through result fields.
This tutorial will provide you with a simple walk-through on how to install ADODB on any system. ADODB is a database abstraction layer library, basically providing OOP support through PHP to connect to a database.
While the word "integrity" connotes "wholeness", it's important to understand what it means specifically in the case of relational database design. Failure to ensure data integrity can result in the database returning incorrect results, or in data becoming unretrievable. This is true of all relational databases, not just MySQL. Fortunately, the principles of data integrity are not difficult to understand. How difficult they are to implement in MySQL and PHP will depend in large degree on how many tables and relationships the database has. This article will start with an overview of relational concepts, and then illustrate each of the concepts with simple examples.
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