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16.

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18.

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2 C 41184
Discuss different join operations and its types.
Write a note on join dependencies and fifth normal form.
What are locks ? Discuss different locks in detail.
How will you create a user-defined function ? Explain with an example.
What is relational calculus ? Explain with example queries.
Section C (Essay Type Questions)
Answer any one question, correct answer carries 10 marks.
Explain different data models in detail.

What is a Trigger ? Write its relevance. How will you create a trigger ?

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