Hi ,
I have the following data.I need to compare date1 with date2(with the existing one) and get the period in days .
subj date1 date2
1 03/02/2019
1 04/02/2019
1 05/02/2019
1 06/02/2019
1 07/02/2019
1 08/02/2019 08/02/2019
1 09/02/2019
1 11/02/2019
1 14/02/2019
1 18/02/2019
1 25/02/2019
1 03/03/2019
1 04/03/2019
1 06/03/2019
1 07/03/2019
1 08/03/2019
1 09/03/2019
1 10/03/2020 10/03/2020
1 11/03/2020
1 13/03/2020
1 15/03/2020
1 17/03/2020
I need as
subj date1 date2 days
1 03/02/2019 -5
1 04/02/2019 -4
1 05/02/2019 -3
1 06/02/2019 -2
1 07/02/2019 -1
1 08/02/2019 08/02/2019 0
1 09/02/2019 1
1 11/02/2019 3
1 14/02/2019 5
1 18/02/2019 7
1 03/03/2019 -7
1 04/03/2019 -6
1 06/03/2019 -4
1 07/03/2019 -3
1 08/03/2019 -2
1 09/03/2019 -1
1 10/03/2020 10/03/2020 0
1 11/03/2020 1
1 13/03/2020 3
1 15/03/2020 5
1 17/03/2020 7
Appreciate your help.Thanks
What is the logic which says use DATE2 = 08/02/2019 instead of DATE2 = 10/03/2019 on some rows, and use DATE2 = 10/03/2019 instead of DATE2 = 08/02/2019 on other rows??
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