Multiple columns in a summary field to calculate distinct count

Question

I have in my sql return statement as

Date            Id

02/12/2012      100
02/12/2012      100
02/13/2012      101
02/13/2012      100

When i show the total visits in crystal report, i show it as

2 

but actual result is

3

ie. based in date and Id.

In crystal report i have a summary field calculating the total based on

"Distinct count of date".

I want to use "Distinct count of date, Id", will that be possible in crystal reports?

so that i can get 3.

Answer 1

Create a formula that combines both data values and do a distinctCount() on that. For example, something like totext({table.date}, 'MM/dd/yyyy') + ' | ' + totext({table.ID})