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"The relational model hides low-level implementation details from", relational databases Multiple Choice Questions (MCQ) with choices developers, users, and system itself for online graduate programs. Learn introduction to dbms questions and answers with free online certification courses for 2 year computer science degree.
Relational Databases Questions and Answers PDF Download eBook
MCQ: The relational model hides low-level implementation details from
- Users
- Developers
- Both A and B
- System itself
C
MCQ: The degree of durability in which transaction commits as soon as its written at the primary and the backup site is known to be
- One-safe
- Two-very-safe
- Two-safe
- Three-safe
B
MCQ: For testing whether a subquery has duplicate tuples in its result, SQL includes a
- Comparison function
- Boolean Function
- Aggregate Function
- Induced function
B
MCQ: File scans are algorithms for searching that is used to locate and retrieve records, fulfilling a
- Projection condition
- Selection condition
- Hashing condition
- Evaluation plan condition
B
MCQ: At the logical level a record can be described as a
- Block
- Type definition
- Segments
- Sequences
B