Easy
For the table E={(Nom), (Prénom), temps}, with primary key PK={(Nom), (prénom)} representing the time for a race
What type of constraint was violated?
Edit
3
Community EvaluationsNo one has reviewed this question yet, be the first!
3
Find the keys of the following functional dependencies: a, b -> c a, b, d -> e c -> a, b d -> f e -> g7
How to obtain the surname and first name of people running more than 10 units?2
What happens when you make the same transaction several times?4
Which entity provides the legal framework supervising databases in France?4
What is GDPR?3
The decomposition normalization algorithm is?.1
What is a database?