Hi folks, seeking help with a query that I thought was simple, but apparantly isn't, at least for someone with my knowledge level.
Given a table : create table atable ( code1 char, code2 char, cost int ); And the rows code1 code2 cost ----------------------------- a b 2 d e 4 b a 6 f g 1 I need a ( preferably single ) query that will sum the costs for any matching pairs of codes regardless of order. That is, row 1 and row 3 concern the same pair of unordered codes (a,b), and the result should show that the (a,b) pair had a summed cost of 8. I am not able to change any of the environment or preconditions other than the query itself. I have tried so many approaches that they aren't even worth listing. Any suggestions would be very much appreciated. ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
