RE: SQL can I do this without 2 CTE?

Select Max( Case when reductionflag = '1' then rate else 0 end ) as max_reduction,
Max( Case when surprimeFlag = '1' then rate else 0 end ) as max_surprime
From mytable;

This assumes that Max(rate) will be greater than zero.

Paul Morgan

Principal Programmer Analyst
IT Supply Chain/Replenishment


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of David FOXWELL
Sent: Wednesday, February 16, 2011 8:57 AM
To: Midrange Systems Technical Discussion
Subject: SQL can I do this without 2 CTE?

Hi,

I have a transaction table with different rates that may be indicated by a flag as either a discount(reduction) or a premium(surprime).
I need the maximum of each type of rate.

I'm using

with
reductions as ( select max(rate) as max_reduction from mytable where reductionFlag = '1'),
surprimes as ( select max(rate) as max_surprime from mytable where surprimeFlag ='1')
select * from reductions join surprimes
;

But I wonder if there's a simpler way?

Thanks