- Disjoint with total specialization
- Disjoint with partial specialization
- Overlap with total specialization
- Overlap with partial specialization
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When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?
Answer: Option 3 Let'
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Use of a supertype/subtype relationship is necessary when which of the following exists?
Answer: Option 1 Let'
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It is appropriate to use a supertype/subtype relationship when there are attributes that apply to some of the instances of an entity type.?
Answer: Option 1 Let'
1 Answers 1 views
When transforming an entity-relationship model into a relational database design, each entity is represented as a table.?
Answer: Option 1 Let'
1 Answers 1 views
When the minimum and maximum number of instances of an entity is one, you know which of the following?
Answer: Option 1 Let'
1 Answers 4 views
When the minimum number of instances of an entity is one, you know which of the following?
Answer: Option 4 Let'
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When mapping a supertype/subtype relationship which of the following is true?
Answer: Option 1 Let'
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A two member committee comprising of one male and one female member is to be constitute out of five males and three females. Amongst the females. Ms. A refuses to be a member of the committee in which Mr. B is taken as the member. In how many different ways can the committee be constituted ?
Answer: Option 4 5C1 × 3C1 - 1 = 15 - 1 = 14
1 Answers 2 views
Overlapping and disjoint subtypes have different approaches on how the subtype discriminator is applied.?
Answer: Option 1 Let'
1 Answers 1 views
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.?
Answer: Option 2 Let'
1 Answers 1 views