Subject SQL query
Author ibfa2000
Hi,

Let be the following tables:

SET SET_ITEM ITEM
=== ======== ====
SET_ID SET_ID ITEM_ID
NAME ITEM_ID NAME
QUANTITY

For a given SET_ID (let's call it S), I would like to create 2
queries:

- a query that returns all sets (i.e. all SET_ID) that have the same
content as S (i.e., that have exactly the same detail records in
SET_ITEM)

- a query that returns all super-sets of S (i.e., all sets containing
the same detail records in SET_ITEM, or more)

Could anyone give me some hint to help me write these queries?

Thanks,
Fabrice