Question 5). Why can I detect an inconsistency in a table of friends but not in one of bank accounts?

community eketa ee (2) New messages from M (no subject) du/ascholer/cs160/Assigns/160-Assignment09.pdf A3) Tell database to set Joe's money to x B3) Tell database to set Joe's m Part 3: Databases and SQL Q5: Why can I detect an inconsistency in a table of friends but not in one of bank accounts? Q6: Here is a table with information about some students: Name Joe Smith 123456 20 3.2 Abby Jones 234567 24 3.6 StudentID Credits GPA And a ToDo list transaction based on Joe earning an A in a 4 credit class. Start transaction Add 4 credits to Joe Change Joe's GPA to 3.66 End transaction A) Why are the actions not idempotent? What could go wrong if we crash midway through the list B) Rewrite the todo list so that the actions are idempotent. Q7: Why might a database need to undo part of a transaction