Which of the following situation requires the use of ID-dependent entities?
A. Association relationships only
B. Multivalued attributes only
C. Archetype/instance relationships only
D. All of the above use ID dependent entities
Answer: Option D
This Question Belongs to Database >> Data Models Into Database Designs
Related Questions on Data Models into Database Designs
A. A domain constraint
B. A range constraint
C. An intrarelation constraint
D. An interrelation constraint
In a 1:N relationship, the foreign key is placed in:
A. either table without specifying parent and child tables.
B. the parent table.
C. the child table.
D. either the parent table or the child table.
A. Null status
B. Data type
C. Default value
D. Data constraints
A primary key should be defined as:
A. NULL.
B. NOT NULL.
C. Either of the above can be used.
D. None of the above are correct.
Join The Discussion