CS403 Quiz No.2 Dated 28-11-2012
Binary relationships are those, which are established between
Select correct option:
One entity type
Two entity type Correct Answer
Three entity type
Unlimited entities
in "many to many relationship" one instance of first entity can be mapped with many instances of second entity
Select correct option:
true
false Correct Answer
Which of the following is a feature of CHECK constraint? Select correct option:
limit the values that can be placed in a column.
used to enforce referential integrity.
enforces the uniqueness of the values in a set of column Correct Answer
is a unique identifier for a row within a database table.
Binary relationships are those, which are established between
Select correct option:
One entity type
Two entity type Correct Answer
Three entity type
Unlimited entities
Which of the following constraints enforces entity integrity?
Select correct option:
PRIMARY KEY Correct Answer
FOREIGN KEY
CHECK
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