Relational Operations Quizzes Online MCQs PDF Download eBook
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Relational Operations Questions and Answers PDF Download eBook
MCQ: Languages based on the relational algebra, add a number of useful syntactic features, such as in
- JAVA
- XML
- SQL
- DB2
C
MCQ: Secondary indices improve the performance of
- Queries without keys
- Queries without search keys
- Queries with keys
- Queries with search keys
C
MCQ: To extract records from, and add records to the appropriate files to the database system, it needs
- Different application programs
- Similar application programs
- Different application systems
- Similar application systems
A
MCQ: The point in the schedule where the transaction obtains its ?nal lock, is called its
- Shrinking point
- Growing point
- Lock point
- Phase point
C
MCQ: Implementation of the simple structures at the logical level may involve complex
- Physical-level structures
- Logical-level structures
- View-level Structures
- Virtual-level Structures
A