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Question

Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction?

a.

Nonrepeatable read

b.

Phantom read

c.

Dirty read

d.

Consistent read

Posted under DBMS

Answer: (a).Nonrepeatable read

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Q. Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction?

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