Hi, I want to make a script between start_date to end_date with the following conditions
for example start_date = '20190131'
so what I want ,
start_date(1:4) must consist of 4 digits
start_date(5:6) should only take values between 1 and 12
start_date(7:8) should only take values between 1 and 31 and same thing for end_date
if my conditions are right it will run my program otherwise it will show me wrong date.