Add attributes to prescription table

Complete query through diagnosis code

More progress

Minor change

Update procedure for visit

change testid queries to testname, add age, minor fixes

fix query 24

add query 24

fix loading screen issue

add front end and data file BDFinal

add sp.sql to import stored procedures into ADA

add insertions for all questions of both tests

add inserts for test delete

fix 3 date-based queries

add updated database diagram as pdf file