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Selecting seperate fields from file - each based on different criteria

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We have a file with grade fields - each with a 'status' field which we would like to use as criteria for adding the the grade fields togather.
(ie. if status field for grade1 is 'A', add to sum, else bypass)

Thanks for your help
Rick
Oct 16 '09 #1
1 1037
Delerna
1,134 Recognized Expert Top Contributor
use case when

for example, this will return the number of records that have Field1=0
Expand|Select|Wrap|Line Numbers
  1. select sum(case when Field1=0 then 1 else 0 end as result
  2. From TheTable
  3.  
There are better ways to do that.
It servers to illustrate CASE WHEN
Oct 19 '09 #2

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