A subtype is a sub-grouping of the entities in an entity type that is meaningful to the organization and that shares common attributes or relationships distinct from other subgroups. What is an overlapping subtype? Describe and provide an example. What is a disjoint subtype? Describe and provide an example. Explain the difference between partial completeness and total completeness?

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A: Ans: The bandwidth of the line = 1.2 Mbps = 1.2 * 106 bits per sec Packet size = 1 KB = 210 * 8 bits...

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A:

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A: Given The answer is given below.

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A:

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Q: 'aabbbb

A:

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A:      

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A: The Answer is

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Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.