Bill,

SELECT DISTINCT document
FROM table
WHERE characteristic IN (a,b)

This can be done entirely with search action settings, or with a direct DBMS 
action. The tricky part, in either case, is getting your list of characteristics to 
be interpreted correctly by the DBMS. I use an array, with array attributes 
that make the commas come out correctly.

By the way, this is an example like many I will show in the presentation I 
will be making at the San Diego Coroboree conference, on getting the 
most out of your DBMS.

Bill


On Thu, 10 Jul 2003 09:03:13 -0700, Bill Conlon wrote:

> picked my SQL in the street, so it's kind of rudimentary.  Maybe 
>someone can point me in the right direction.

>Here's a table

>document  characteristic
>1         a
>1         b
>1         d
>2         a
>2         d
>2         e
>3         a
>3         b

>I want to SELECT the document(s) that match all of a set of 
>characteristics.  

>Say I want all documents with characteristic a AND b:  This should return 
>documents 1 and 3





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