Question

I have been dealing with this for quite sometime now and I could not be able get around this. It is like this, I have table with case_no (alphanumeric), first_name, last_name and description.

What I want do is to select only one row for each distinct first_name/last_name combination. So, for example

     case_no         |         first_name         |         last_name
---------------------+----------------------------+------------------------
     AAAAAAA         |          john              |          doe
     BBBBBBB         |          Dog               |          dawg
     CCCCCCC         |          Cat               |          kitten
     DDDDDDD         |          john              |          doe

Given that example I want to retrieve the following rows:

     case_no         |         first_name         |         last_name
---------------------+----------------------------+------------------------
     BBBBBBB         |          Dog               |          dawg
     CCCCCCC         |          Cat               |          kitten
     DDDDDDD         |          john              |          doe

How do I do this?

Answer 1

Try this,

SELECT MAX(CASE_NO), FIRST_NAME, LAST_NAME
FROM TABLE
GROUP BY FIRST_NAME, LAST_NAME;