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"When an entity in set B, can be associated with at most one entity in set A, the defined cardinality is said to be of type", constraints in dbms Multiple Choice Questions (MCQ) with choices one-to-one, many-to-many, one-to-many, and all-to-all to study computer engineering courses. Learn database design and er model questions and answers with free online certification courses for accelerated computer science degree online.
Constraints in DBMS Questions and Answers PDF Download eBook
MCQ: When an entity in set B, can be associated with at most one entity in set A, the defined cardinality is said to be of type
- Many-to-many
- One-to-one
- One-to-many
- All-to-all
C
MCQ: Storage media like magnetic disks are referred to as
- Primary storage
- Secondary storage
- Volatile storage
- Tertiary storage
B
MCQ: The statement SQL COMMIT is used for
- Automatic commit
- Explicit commit
- No commit
- Variable commit
A
MCQ: The Fields of the files are stored in
- Columns
- Rows
- Nodes
- Indices
A
MCQ: The result of Boolean expression 'unknown or unknown' is
- True
- False
- Unknown
- Null
C