Hello Guys,
I need to plot following
Avg( Stdev (Peak WL Group by Wafer Id) ) Group by Base Growth
Here Base_Growth = LEFT (Wafer_id,11)
Please refer below query
SELECT LEFT (a.Wafer_id,11) Base_Growth , AVG(stdev_PL) Avg_Stdev_PL
FROM
(
SELECT Wafer_id, stdev((peak_lambda))stdev_PL
FROM dbo.f_LED_Reactor_PL_Data WITH (NOLOCK)
GROUP BY Wafer_id
) A
GROUP BY LEFT (a.Wafer_id,11)
Please any input will be helpful.
Thanks,
Nithin
