Oracle FAQ | Your Portal to the Oracle Knowledge Grid |
Home -> Community -> Usenet -> c.d.o.misc -> SQL- question
I have to tables who is connected like this:
Table A(parent)
parent_number
Table B(child)
child_number
child_zipcode
---
The two tables are connected with parent_number = child_number
I want to find every parent that have two or more childs with the same
zip_code.
How do I do that?
Ulf Received on Wed Jul 07 1999 - 08:25:48 CDT