Question

I’m having some issues returning unique results from a table that has some repeating values. The table I am using is as follows:

Venue ID  | Venue   | Venue Phone |  Venue Address| 
10659      Ottawa
10587      Toronto
10967      Ottawa
10492      Hamilton
10595      Hamilton

I need to display the venue name proper, but return the venue id (I can only use two columns as I working with a List of Values in Oracle Apex). The issue is that venue names can repeat, but venue id’s are always unique. So using the queries I’ve been using for other lists, I will end up with duplicate venue names. Is there any query that can achieve what I want?

Answer 1

If you don’t care which of the venue ID’s is picked, you could simply do a GROUP BY and pick the one with the larger VENUE_ID

SELECT max(venue_id) venue_id, venue venue_name
  FROM table_name
 GROUP BY venue