Set up your database as normal for your content and add fields for:
Create a record-set for the page, retrieving the record for the page.
Add the information as follows:
<title>Site Title: <?php echo $row_rs_content['pg_title']; ?></title> <META NAME="KEYWORDS" CONTENT="<?php echo $row_rs_content['pg_keywords']; ?>"> <META NAME="DESCRIPTION" CONTENT="<?php echo $row_rs_content['pg_description']; ?>">