Grouping data issue

Question

Hi friends,
I am struck on a issue for which i am trying to find a solution. The issue is i have a select statement which returns me the data like below. The first column is the date column, the second and third column represent the count based on the column 4 and column 5. i.e, column 2 is mapped based on col4 and col3 is mapped to col5. I want the data in the table to be grouped based on the col4 and col5.
Existing table
Date col2 col3 col4 col5
2010-07-25     3     7     26     26
2010-07-25     3     3     26     505
2010-07-25     1     7     505     26
2010-07-25     1     3     505     505
Desired table
Date col2 col3 col4 col5
2010-07-25     3     7     26     26
2010-07-25     1     3     505     505
Could you please let me know how to do it.
Note: Topic is moved to SQL/PLSQL forum
Edited by: bluerose on Aug 20, 2011 1:53 AM

Answer 1

for the data provided it seems just
... where col4 = col 5or reading the requirement maybe (NOT TESTED!)
select x.date,x.col2,y.col3,x.col4,y.col5
  from (select max(date) date,max(col2) col2,col4
         group by col4
       ) x,
       (select max(date) date,max(col3) col3,col5
         group by col5
       ) y
where x.col4 = y.col5Regards
Etbin