Hi, I am trying to create a flag for a large database.
There are multiple monthly and if a customer has an outstanding debit for consecutive months, I need a flag "Y". If not then "N" (no flag).
Please see a sample data base:
Name Jan Feb Mar April
a 0 100 150 0
b 100 0 200 0
c 100 100 100 0
Could anyone help me with the same?
Best and thanks in advance