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soozh asked
Last Modified: 2021-04-21
SQL Server 2008!

I have a table that contains the following columns and data:

Date               Gender        Value
2010-01-15   M                   0
2010-01-15   M                  10
2010-01-15   M                  12
2010-01-15   F                  0
2010-01-15   F                  8
2010-01-15   F                  0
2010-02-15   M                  6
2010-02-15   M                  9
2010-02-15   M                  6
2010-02-15   F                  0
2010-02-15   F                  6
2010-03-15   M                  0

The table has a date column, a column for the patients gender, and a measurement.

I need a query that returns the following for each date
a) the % of patients that have a measurement greater than zero
b) the % of male patients that have a measurement greater than zero
c) the % of female patients that have a measurement greater than zero

So for the above data i think i should get

2010-01-15   50%   67%   33%
2010-02-15   80%   100%  50%
2010-03-15   0%      0%       0%

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