Database Systems Practice Test 241
Extended ER Features Quiz Questions and Answers PDF Download - 241
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Extended ER Features Questions and Answers PDF Download: MCQ 241
The generalization type in which some higher-level entities may not belong to any lower-level entity set, is said to be
- Dependent specialization
- Complete specialization
- Total specialization
- Partial specialization
The correlation name in the SQL standard, is commonly referred to as a
- Table alias
- Correlation variable
- Tuple variable
- All of the above
Adding or subtracting an interval to a date or time gives back a/an
- Interval
- Data or time
- Value
- Boolean expression
For controlling preemption, each transaction can be assigned a unique
- Order
- Identifier
- Locator
- Timestamp
To grant a privilege and to allow the recipient to pass the privilege on to other users, we append the clause by
- grant
- grant option
- with grant option
- by grant option
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