FairCom SQL for PHP PDO

Relationships

php.sql.pdo\tutorials\PHP_Tutorial2.php

Now we will build some table/file relationships using the FairCom DB PHP Interface and the PDO (PHP Data Objects) extension to PHP.

This tutorial will advance the concepts introduced in the first tutorial by expanding the number of tables. We will define key columns/fields and create specific indexes for each table to form a relational model database.

Like all other examples in the c-tree tutorial series, this tutorial simplifies the creation and use of a database into four simple steps: Initialize(), Define(), Manage(), and You’re Done() !

Tutorial #2: Relational Model and Indexing

Here we add a bit more complexity, introducing multiple tables, with related indices in order to form a simple "relational" database simulating an Order Entry system. Here is an overview of what will be created:

JDBC Relational Picture

Initialize() - Connects to the FairCom Database Engine.
Define() - Defines and creates the "custmast", "custordr", "ordritem" and the "itemmast" tables/files with related indexes.
Manage() - Adds some related rows/records to all tables/files. Then queries the database.
Done() - Disconnects from FairCom Database Engine.

Note our simple PHP script:

<?php

print("<html>\n");

print("<head>\n");

print("\t<title>PHP Tutorial 2</title>\n");

print("</head>\n");

print("<body>\n");

// Implementation of the concept of "init, define, manage and you're done..."

$session = Initialize();

Defines($session);

Manage($session);

Done($session);