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Need count of values in table

Last Modified: 2010-04-21
Hello I have a table in MS SQL Server that looks like this

Instrument,  KitLot
1                 Z123
1                 Z123
1                 U101
1                 U101

I would want to know how many unique  kitLots there are  per instrument so the answer I am looking for here is   2

Thank You
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Guy Hengel [angelIII / a3]Billing Engineer
Most Valuable Expert 2014
Top Expert 2009

select count(*)
from ( select kitlot from yourtable group by kitlot where instrument = 1 ) as subquery

for all instruments:

select instrument, count(*)
from ( select instrument, kitlot from yourtable group by instrument, kitlot  ) subquery
group by instrument

Charles BaldoSoftware Developer


Perfect Thanks a ton and just in time for my 9:30 meeting :)

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