Question 1 of 25
Hints left: 3
Q1
Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?
Q2
The identifier of an entity will become the ________ of the new table.
Q3
In 1:N relationships, which entity becomes the parent entity is arbitrary.
Q4
Cascading updates refers to child rows being automatically deleted when a parent row is deleted.
Q5
A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):
Q6
Which is not true about surrogate keys?
Q7
A foreign key is used to implement relationships between tables.
Q8
Which of the following column properties would be used to specify that cells in a column must contain a monetary value that is less than another monetary value in the same row?
Q9
Which of the following data constraints would be used to specify that the value of a cell in one column must be less than the value of a cell in another column in the same row of the same table?
Q10
Surrogate keys have much meaning for users.
Q11
For every relationship, how many possible sets of minimum cardinalities are there?
Q12
All primary keys are required.
Q13
When transforming an entity-relationship model into a relational database design, each entity is represented as a table.
Q14
The terms alternate key and candidate key mean the same thing.
Q15
When the parent entity is required, cascading updates and cascading deletions should be allowed or the associated actions on the parent should be prohibited.
Q16
The DBMS allows surrogate keys to be changed.
Q17
When the parent entity is required, a new child row can always be inserted.
Q18
An intersection table is required to represent M:N relationships.
Q19
Intersection tables are ID-dependent on both their parent tables.
Q20
When the child entity is required, we are restricted from creating a new parent row without also creating a corresponding child row at the same time.
Q21
For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?
Q22
If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value.
Q23
Each entity is represented as a(n):
Q24
In a 1:1 relationship, the primary key placement is arbitrary.
Q25
For every relationship, there are six possible sets of minimum cardinalities.