Question

Which concurrency anomaly is specific to phantom reads?

Q: Answer-Which concurrency anomaly is specific to phantom reads?

Phantom read a new row appears that wasnt there in the first query because another transaction inserted it. Different from non-repeatable read changed value.

A A record is updated by another transaction during read

B A record disappears from a result set

C A new record appears matching a query condition during re-execution

D A record is read twice with different values

E Index corruption occurs

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Which concurrency anomaly is specific to phantom reads?

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