7 years ago in Database Management System

Which of the following SQL statements are helpful in database redesign?

[A] Correlated subqueries only
[B] EXISTS/NOT EXISTS expressions only
[C] Both of the above are helpful
[D] None of the above are helpful.
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Answers

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Sewunet Samuel
Sewunet Samuel - 4 months ago

Sewunet Samuel from Ethiopia is saying Both of the above are helpful is correct answer

Ahmed Alanbagi
Ahmed Alanbagi - 7 months ago

Ahmed Alanbagi from Baghdad, Iraq is saying Both of the above are helpful is correct answer

KAMALAMBAL KAMAL
KAMALAMBAL KAMAL - 11 months ago

KAMALAMBAL KAMAL is saying Both of the above are helpful is correct answer

Jaspreet Kaur
Jaspreet Kaur - 1 year ago

Jaspreet Kaur from Mumbai, India is saying Both of the above are helpful is correct answer

uma maheswari
uma maheswari - 1 year ago

uma maheswari from Tiruchi, India is saying EXISTS/NOT EXISTS expressions only is correct answer

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