Question

This is table Posts structure (there are other columns that aren’t important to the question):

Verb | Object | Date

I’m grouping by Verb and then Object, to group all similar rows, this is my current query:

SELECT * FROM Posts GROUP BY Verb, Object

I need to know the date of the oldest row in each group. How can this be done?

Answer 1

How about

SELECT  Verb, 
        Object, 
        MIN(date) OldestDate
FROM    Posts
GROUP BY    Verb, Object

Have a look at GROUP BY (Aggregate) Functions