>>I have these three tables -
>>

>>Table: Products
>>ProdId	Prod_Series 			Prod_No
>>------------------------------------------------
>>6090	ML350T02 P1266 2059 FR		291378-051
>>6091	ML350T02 P1266 512 M1 BRZL	225861-201
>>6092	ML350T02 P1266 EU2002 EURO	277811-421
>>6093	ML350T02 P1266 SP3636 EURO	267546-421
>>
>>Table: ProductParts
>>RowId	ProdId	PartId
>>------------------------------------------------
>>246432	6090	5526
>>246433	6091	5067
>>246434	6091	4638
>>246435	6091	4639
>>246436	6091	4682
>>
>>Table: Parts
>>PartId	Part_Num	Keyword		Category			Desc
>>------------------------------------------------------------------------------------------------
>>5762	228523-001	Cover			Mechanical PartsAccess panel (top cover) - Includes built-in hood latch
>>5763	228524-001	Processor		Logic Board			Intel Pentium III processor - 1.13GHz (Tualatin, 133MHz front...
>>5764	228525-001	Airflow Guide	Mechanical Parts	Processor airflow guide (air baffle)
>>5765	228526-001	Manual/Software	Mechanical Parts	Localization kit (country kit) - Use with 2.40GHz and 2...
>>5766	232793-001	Rack Mount Kit	Mechanical Parts	Rack mount kit - Includes left slide assembly for stand...
>>5767	232794-001	Rack Mount Kit	Mechanical Parts	Rack mount kit - Rails for 2-post Telco type rack
>>
>>
>>

>>
>>
>>The user can enter anything for a query. If the query string is found in Product.Prod_Series or Product.Prod_No, the return the
>>Product row and all child rows for it. If the query string is found in the Part.Part_Num, Part.Keyword, Part.Category, or Part.Desc,
>>then return the Product Row the part belongs to, as well as the part row.
>>
>>Think TreeView. If the text I search for is a parent, return the parent and all children. If the search text is a child, return the only
>>the child an it's parent.
>
>Assuming 'Products' is the parent that implies a part is only used in a single product. Is that the case ?
>>
>>Is this possible in one query? Anyone have any thoughts on how to do this?

No, it is not. That's why there's a ProductParts table.