Executive Trainee Interview Questions

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I was asked queries in DBMS, questions about primary, composite and foreign keys? Difference b/w primary and secondary index? What is clustered index? Advantages & disadvantages of using primary & secondary index? What is foreign key constraint? and other constraints (integrity)? If you are a database engineer, what are the main things that you will keep in mind? I had to explain on each based on the above question: Security, Validation, Concurrency, time & space.
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Executive Trainee

Interviewed at Unilever

4
Oct 24, 2017

I was asked queries in DBMS, questions about primary, composite and foreign keys? Difference b/w primary and secondary index? What is clustered index? Advantages & disadvantages of using primary & secondary index? What is foreign key constraint? and other constraints (integrity)? If you are a database engineer, what are the main things that you will keep in mind? I had to explain on each based on the above question: Security, Validation, Concurrency, time & space.

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