COMP3311 Final Exam |
The University of New South Wales COMP3311 Database Systems 20T3 Final Exam Updates |
Database Systems |
Updates to the exam will be posted here
When a fix is required, we will make it in the online exam and in the
exam-paper.zip file. If have the exam paper on your home machine, you
might want to download and unzip it again to keep your copy up to date.
In Q9, as well as a date, you'll need a way of generating a new ID for the group. Write an assumption for this, e.g. "I assume that the Groups.id field> is a serial" or "I assume there is a function newGroupID() that will return a new unique ID value" or ...
In Q12, the template file acidentally had a part (c) included. Ignore it. You can remove it before submission, or leave it. Either way is fine.
In Q7, there was no explicit statement about when to write "The whole group". If there are no performers mentioned for a song, then we assume that the whole group (all members) was involved.
Some of the later questions said that submission was via an imaginary command called submit. Now they all show the give command.
In Q6, the C printf hint didn't make it clear that 8 minutes and 5 seconds should be displayed as 8:05. Now it does. The expected outputs might have made this clear anyway.
In Q11, part B was missing "from R". Now fixed.
Part D had unadorned joins. The intention was for these to be natural join, so I've made that explicit.
In Q6, use the trackno as the displayed track number, as well as using it for ordering. There may be gaps in the trackno sequences, but we want to see those.
There may be problems with the expected output for the test. I'm checking ...
There weren't problems. The expected output is ok.
I've investigated and all the people who asked were not distinguishing performers properly. There can be several performers with the same name.
The 01.sh test script in Q4 contained collate "en_AU" at the end of the SQL statement. If this causes problems in your setup, simply remove that text (collate "en_AU") from the SQL.
The intention for Q1, Q2 and Q3 was that you only use views.
Q9 mentions a "departed date" for performers, but this database doesn't
have that field.
Assume that there is a field called departed
in the MemberOf table.
Q3 should also include 'acoustic guitar' in the list of guitars.