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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Shourya Singh Rawat
Shourya Singh Rawat - 4 years ago

Shourya Singh Rawat from India is saying Both of the above are helpful is correct answer

Imran Ali
Imran Ali - 4 years ago

Imran Ali from Rawalpindi, Pakistan is saying EXISTS/NOT EXISTS expressions only is correct answer

Muhammad Saleem Raza
Muhammad Saleem Raza - 4 years ago

Muhammad Saleem Raza from Lahore, Pakistan is saying Correlated subqueries only is correct answer

ranaasif
ranaasif - 4 years ago

ranaasif from Multan, Pakistan is saying Both of the above are helpful is correct answer

MUHAMMAD NADEEM
MUHAMMAD NADEEM - 4 years ago

MUHAMMAD NADEEM from Lahore, Pakistan is saying Both of the above are helpful is correct answer

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