Hi, I am having a problem grouping a many to many relationship with
payments and receipts, where a payment can be for multiple receipts,
and a receipt can have multiple payments. I got a list of records that
are involved in such relations, but now I don't know how to group them
so that all payments and rececipts belonging to the same group are
properly grouped. Here's the list:
bankbookdetid | receiptid
---------------+----------- 147 | 25 157 | 25 157 | 622
321 | 100 332 | 101 332 | 100
2156 | 573 2156 | 574 2156 | 575 1710 | 575 1710
| 576
I have already grouped them according to the way they should be
grouped: bankbook payments and receipt amounts that are part of the
same transaction (they are a subset of a large set of payments and
receipts, most 1-1, 1-n and n-1, which are solved relatively easy).
As you can see there are a few records that interconnect the payments
and receipts:
bankbookdetid | receiptid
---------------+----------- 157 | 25
332 | 100
2156 | 575 1710 | 575
I tried now for some time how a SQL statement could give a set grouped
as you can see above, but I just don't seem to see it. Is there anyone
around over here that had a similar situation and has found a solution?
Should I try to do this in PL/SQL? Is there a solution for the problem
anyway?
-johan