I am working on an Asset Database problem using PHP / MySQL.

In this script I would like to search my assets by an asset id and have it return all related fields.

First I query the database asset table and find the asset's type. Then depending on the type I run 1 of 3 queries.

<?php

//make database connect
mysql_connect("localhost", "asset_db", "asset_db") or die(mysql_error());
mysql_select_db("asset_db") or die(mysql_error());

//get type of asset
$type = mysql_query("
SELECT asset.type
From asset
WHERE asset.id = 93120
")
or die(mysql_error());

switch ($type){
    case "Server":
        //do some stuff that involves a mysql query
        mysql_query("
        SELECT asset.id
        ,asset.company
        ,asset.location
        ,asset.purchase_date
        ,asset.purchase_order
        ,asset.value
        ,asset.type
        ,asset.notes
        ,server.manufacturer
        ,server.model
        ,server.serial_number
        ,server.esc
        ,server.user
        ,server.prev_user
        ,server.warranty
        FROM asset
        LEFT JOIN server
        ON server.id = asset.id
        WHERE asset.id = 93120
        ");
        break;
    case "Laptop":
        //do some stuff that involves a mysql query
        mysql_query("
        SELECT asset.id
        ,asset.company
        ,asset.location
        ,asset.purchase_date
        ,asset.purchase_order
        ,asset.value
        ,asset.type
        ,asset.notes
        ,laptop.manufacturer
        ,laptop.model
        ,laptop.serial_number
        ,laptop.esc
        ,laptop.user
        ,laptop.prev_user
        ,laptop.warranty
        FROM asset
        LEFT JOIN laptop
        ON laptop.id = asset.id
        WHERE asset.id = 93120
        ");
        break;  
    case "Desktop":
        //do some stuff that involves a mysql query
        mysql_query("
        SELECT asset.id
        ,asset.company
        ,asset.location
        ,asset.purchase_date
        ,asset.purchase_order
        ,asset.value
        ,asset.type
        ,asset.notes
        ,desktop.manufacturer
        ,desktop.model
        ,desktop.serial_number
        ,desktop.esc
        ,desktop.user
        ,desktop.prev_user
        ,desktop.warranty
        FROM asset
        LEFT JOIN desktop
        ON desktop.id = asset.id
        WHERE asset.id = 93120
        ");
        break;  
}

?>

So far I am able to get asset.type into $type. How would I go about getting the rest of the variables (laptop.model to $model, asset.notes to $notes and so on)?

Thank you.