Database Systems Practice Test 241

Extended ER Features Quiz Questions and Answers PDF - 241

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Extended ER Features Questions and Answers PDF Download: Quiz 241

MCQ 1201: The generalization type in which some higher-level entities may not belong to any lower-level entity set, is said to be

A) Dependent specialization

B) Complete specialization

C) Total specialization

D) Partial specialization

MCQ 1202: The correlation name in the SQL standard, is commonly referred to as a

A) Table alias

B) Correlation variable

C) Tuple variable

D) All of the above

MCQ 1203: Adding or subtracting an interval to a date or time gives back a/an

A) Interval

B) Data or time

C) Value

D) Boolean expression

MCQ 1204: For controlling preemption, each transaction can be assigned a unique

A) Order

B) Identifier

C) Locator

D) Timestamp

MCQ 1205: To grant a privilege and to allow the recipient to pass the privilege on to other users, we append the clause by

A) grant

B) grant option

C) with grant option

D) by grant option

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