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Database Constraints and Relational Schemas MCQ (Multiple Choice Questions) PDF Download
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Database Constraints and Relational Schemas Questions and Answers PDF Download
When the primary key is null of the new tuple then the constraint violated is
- null integrity constraint
- primary integrity constraint
- secondary integrity constraint
- entity integrity constraint
The key which specifies that two different tuples cannot have the same value is classified as
- super key
- simple key
- parallel key
- conceptual key
The constraint violated when the given value of attribute is not included in the corresponding domain is
- domain constraint
- attribute constraint
- key constraint
- lock constraint
If two or more constraints are violated by using insert operation then by default the
- insert is accepted
- insert is rejected
- insertion permanently blocked
- none of above
The multi-valued dependencies and functional dependencies are classified as category of
- relation dependencies
- data dependencies
- entity dependencies
- attribute dependencies
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Database Constraints & Relational Schemas MCQs Book Questions
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