I have approx 29,000 rows of data and three columns: a unique ID, an admission date and a departure date
I need to sort the data so that:
1) The admission dates are in order from newest to oldest for each individual ID (i.e. the admin dates associated ONLY with the ID 455 are ordered from newest to oldest and then start again and do the same thing with ID 677 and 899 etc.); and
2) The departure date associated with each admin date stay locked together.
Does anyone know if this is possible, and if so, how I might go about achieving it?
Thanks so much advance!