4. For each part, list the part number, description, units on hand, and number of units ordered. All parts should be included in the results. For those parts that are currently not on order, the order number and number of units ordered should be left blank. Order the results by part number. part_num description on_hand num_ordered AT94 Iron 50 11 BV06 Home Gym 45 2 CD52 Microwave Oven 32 A DL71 Cordless Drill 21 HULL DR93 Gas Range 8 2 DW11 Washer 12 FD21 Stand Mixer 22 HULL KL62 Dryer 12 4 KTO3 Dishwasher 8 2 KV29 Treadmill N