Q. Higher level entity sets are designated by the term _________

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Q. State true or false: The attributes of the higher level entity sets are inherited by the attributes of the lower level entity sets

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Q. Which of the following is not a generalization constraint?

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Q. Condition defined generalization constraint is also said to be ________

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Q. If each higher level entity belongs to the lower level entity, then what kind of generalization is it?

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Q. ________ is an abstraction through which relationships are treated as higher level entities

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Q. Weak entity set is represented as

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Q. If you were collecting and storing information about your music collection, an album would be considered a(n) _____

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Q. What term is used to refer to a specific record in your music database; for instance; information stored about a specific album?

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Q. Let us consider phone_number ,which can take single or several values . Treating phone_numberas an _________ permits instructors to have several phone numbers (including zero) associated with them.

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Q. The total participation by entities is represented in E-R diagram as

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Q. Which of the following is a low level operator?

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Q. A window into a portion of a database is

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Q. The entity set person is classified as student and employee. This process is called _________

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Q. Which relationship is used to represent a specialization entity ?

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Q. The refinement from an initial entity set into successive levels of entity subgroupings represents a ________ design process in which distinctions are made explicit.

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Q. There are similarities between the instructor entity set and the secretary entity set in the sense that they have several attributes that are conceptually the same across the two entity sets: namely, the identifier, name, and salary attributes. This process is called

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Q. If an entity set is a lower-level entity set in more than one ISA relationship, then the entity set has

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Q. A _____________ constraint requires that an entity belong to no more than one lower-level entity set.

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Q. Consider the employee work-team example, and assume that certain employees participate in more than one work team . A given employee may therefore appear in more than one of the team entity sets that are lower level entity sets of employee. Thus, the generalization is _____________

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