select requestID from trequest where ordernum=max(ordernum);

This assumes that by highest you mean the highest alphabetically.

Clayton
----- Original Message -----
From: "Next Step" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, February 21, 2002 12:50 PM
Subject: OOT: SQL statement.


> Hi,
>
> I have one table, say TRequest which has :
>
> UID   RequestID   OrderNum   SalesName
> ----+-----------+-----------+------------
> 1001   REQ1        1           III
> 1002   REQ2        1           UUU
> 1003   REQ2        2           TTT
> 1004   REQ3        1           XXX
> 1005   REQ4        1           XYZ
> 1006   REQ4        2           WWW
> 1007   REQ4        3           UUU
> 1008   REQ4        4           CCC
>
> How to retrieve *only* one RequestID which has the *highest* OrderNo in
one
> statement?
> Right now I'm retrieving all and do procesing/filtering in jsp, which i
> think is not so efficient.
>
> Tks.
>
>
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