In a relational Database a referential integrity constraint cab be specified with the help of Options: A . &nbspPrimary Key B . &nbspSecondary key C . &nbspForeign key D . &nbspNone of these

In a relational Database a referential integrity constraint cab be specified wi

Question

In a relational Database a referential integrity constraint cab be specified with the help of

Options:

A . Primary Key

B . Secondary key

C . Foreign key

D . None of these

Answer: Option C

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Question 1. In the architecture of the Database System, external level is the....

Question 2. A schema describes....

Question 3. Which of the following is not a type of data?....

Question 4. A logical schema....

Question 5. What is data integrity....

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Question 9. A _________ integrity constraint requires that the values appearing in specified attributes of any tuple in the referen....attributes of at least one tuple in the referenced relation

Question 10. In Hierarchical model records are organised as ....

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