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Define primary and unique key?


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More Database Management Interview Questions

When do you get a .PLL extension ?

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What is primary key in dbms?

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Can you have more than one cursor open at any one time in a program ?

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How can I access my database remotely?

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Explain atomicity and aggregation?

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How to find the size of database?

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Compare a hierarchical and network database model?

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Single File Database: Develop a student record management program, which uses single file as its database. It is not supposed to create additional files at any part of the project and should never rewrite total content. It must be capable of storing 100000's of records. It should support variable length records to be added, deleted, modified, listed.

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