Posted by Ryan Dahl on 03/25/06 00:08

Hi,

I'm working on a simple performance-program, where I need to extract
information from the 2 newest periods for every performance-indicator
- And from there calculate a trend between these results.

The problem is, that I can't find a simple way to extract the 2 latest
results.

The Table (Table1) looks like this:
kpiID periodID Actual
Acceleration 2 3
Acceleration 5 4
Speed 1 100
Speed 4 200
Speed 7 220
Speed 9 180
Weight 1 22
Weight 3 32
Weight 7 21
Weight 10 33

If I want to extract the newest I use something like this (made it in
MS Access, so the syntax might differ slightly from SQLServer):

SELECT table1.kpiID, table1.periodID, table1.Actual
FROM table1 WHERE table1.periodID = (SELECT max(t.periodID) from
table1 as t WHERE t.kpiID=table1.kpiID);

BUT - how how do I get the second-newest period as well?

Preferably I would like the final result to be a View with the
following fields:
kpiID, periodID_newest, Actual_newest, periodID_sec_newest,
Actual_sec_newest

Alternatively a View with 2 posts for each performace-indicator.

Thanks in advance
Ryan

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