If you want to query information stored in multiple tables, you can use the SELECT statement with a WHERE condition to make an inner join. Assuming that you have 3 tables in a forum system: "users" for user profile, "forums" for forums information, and "posts" for postings, you can query all postings from a single user with a script as shown below:

<?php

$con = mssql_connect('ggl_SQL_SERVER','sa','GlobalGuideLine');

$userID = 101;

$sql = "SELECT posts.subject, posts.time, users.name,"

. " forums.title"

. " FROM posts, users, forums"

. " WHERE posts.userID = ".$userID

. " AND posts.userID = users.id"

. " AND posts.forumID = forums.id";

$res = mssql_query($sql, $con);

while ($row = mssql_fetch_array($res)) {

print($row['subject'].", ".$row['time'].", "

.$row['name'].", ".$row['title']." ");

}

mssql_free_result($res);

mssql_close($con);

?>