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db2 table self-join with count by column
I have a table similar to the following (column headings at top):
appnum, state, yn1, yn2, yn3, yn4
1, AL, Y, N, Y, N
2, AL, N, Y, Y, Y
3, AL, N, N, N, N
4, OK, Y, Y, Y, Y
5, PA, N, Y, N, Y
I am looking for a count by:
state, yn1, yn2, yn3, yn4
where the count is how many yn1 values = 'Y', yn2 values = 'Y', etc.
For the example above the output would look like (with headings at top):
state, yn1count, yn2count, yn3count, yn4count
AL, 1, 1, 2, 1
OK, 1, 1, 1, 1
PA, 0, 1, 0, 1
I hope my description is clear. Thank you for any help!
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by: KdoPosted on 2009-08-27 at 05:06:50ID: 25196967
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