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ER Diagram Questions

A logical schema

June 6, 2022 by admin

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Practice ER Diagram Questions –

A logical schema

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Before any changes to database structure are attempted one should firs

June 6, 2022 by admin

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Practice ER Diagram Questions – Before any changes to database structure are attempted one should first:

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Suppose the user finds the usage of room number 

June 6, 2022 by admin

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Practice ER Diagram Questions –

Suppose the user finds the usage of room number and phone number in a relational schema there is confusion.This is reduced by :-

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Referential integrity controls relationships between :

June 6, 2022 by admin

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Practice ER Diagram Questions – Referential integrity controls relationships between :

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How many copies of the database schema are typically used in the redes

June 6, 2022 by admin

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Practice ER Diagram Questions – How many copies of the database schema are typically used in the redesign process?

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In which of the following , a separate schema is created consisting

June 6, 2022 by admin

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Practice ER Diagram Questions –

In which of the following , a separate schema is created consisting of that attribute and the primary key of the entity set.

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Which of the following has each related entity set has its own sche

June 6, 2022 by admin

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Practice ER Diagram Questions –

Which of the following has each related entity set has its own schema and there is an additional schema for the relationship set ?

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If a multivalued dependency holds and is not implied by the corresp

June 6, 2022 by admin

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Practice ER Diagram Questions –

If a multivalued dependency holds and is not implied by the corresponding functional dependency, it usually arises from one of the following sources.

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A ………………… is used to define overall design of the dat

June 6, 2022 by admin

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Practice ER Diagram Questions –

A ………………… is used to define overall design of the database

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The ability to modify the conceptual schema without causing any change

June 6, 2022 by admin

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Practice ER Diagram Questions – The ability to modify the conceptual schema without causing any change to the application program is known as :

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