Fetches as much student data as possible, preferencing the most recent
fetch_students.Rd![[Maturing]](figures/lifecycle-maturing.svg)
Grabs the most data possible on as many students as possible.
For time dependent data (as in the student_progress table)
it grabs the latest non NA data. Note that this only works
if the student_ids, student_demographics and student_progress
tables are loaded, either through the retention.data package
or the .rda files.