Hi,
I've a date column like this :
Column 1
2019-01-15
2019-02-10
2020-09-20
and i want to create column to calculate the date of the previous month (subtract 1 month of the original date)
=> i want to create a column 2 like this :
Column 1 Column 2
2019-01-15 2018-12-15
2019-02-10 2019-01-10
2020-09-20 2020-08-20
Is it possible ?
I don't find a function to do this...
Thanks for your answers.
Regards