SQL Question

From: lerobe - Lee Robertson <LEROBE_at_acxiom.co.uk>
Date: Wed, 24 Jan 2001 14:08:01 -0000
Message-Id: <10751.127357@fatcity.com>

All,  

As you have probably guessed by now, my SQL isn't the srongest so I would appreciate some help if you could.  

Two tables  

Table A

---

CUST_KEY
SOURCE_CODE
DATE_OBTAINED
THIRD_PARTY
plus other columns  

Table B

---

CUST_KEY
HOUSE_KEY
other columns.  

What I need to do is find all rows in Table A where columns 2,3 and 4 have the same value (col 1 can be different) and then link to table B and join with cust key to find out which rows have distinct house_keys.  

Data Example  

Table A  

Col1       Col2       Col3       Col4
1            3            3            4
2            3            2            4
3            3            2            4
4            4            4            4
5            5            4            3
6            5            4            3                          in this

example I would only require rows 2 and 3, and 5 and 6.  

Any ideas (other than me going on an SQL writing course !!!).  

Regards  

Lee Robertson
Acxiom
Tel: 0191 525 7344
Fax: 0191 525 7007
Email: lerobe_at_acxiom.co.uk  

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