Relational Model Constraints Quiz Questions and Answers PDF Download eBook
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Quiz on Relational Model Constraints PDF Download eBook
MCQ: The type of constraint which states that not even a single value with primary key can be a null value is classified as
- null integrity constraint
- primary integrity constraint
- secondary integrity constraint
- entity integrity constraint
D
MCQ: In disks, the tracks having same diameter on different surfaces are classified as
- sector
- blocks
- track
- cylinder
D
MCQ: The conclusion of the template is a condition which must be held on tuples hypothesis in the template dependency called
- schema generating templates
- relation filtering template
- constraint generating templates
- tuple generating templates
C
MCQ: The type of data manipulation language which is used to describe the complex operations in more precise way is classified as
- internal mapping language
- non procedural language
- procedural language
- external mapping language
B
MCQ: Considering the constraints of generalization and specialization, the constraint of disjointness and completeness is usually
- non calculated
- non defined
- independence
- dependence
C