Question: I need all question correct answer ( a,b,c) within 15 minutes. It is very emergency needed. [4] [2] 3. (a) What is a trigger? Explain

I need all question correct answer ( a,b,c) within 15 minutes.

I need all question correct answer ( a,b,c) within 15 minutes. It is very emergency needed.

[4] [2] 3. (a) What is a trigger? Explain three basic parts of a trigger with example. (b) What are the categories of integrity constraints? (c) What do you understand by database indexing? Differentiate between Dense index and Sparse index with example. [4]

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