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Which SQL transaction isolation level prevents "dirty reads" but still allows "non-repeatable reads" and "phantom reads"?

522Medium DSSSB TGT Computer Science 0 replies 1 views

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Which SQL transaction isolation level prevents "dirty reads" but still allows "non-repeatable reads" and "phantom reads"?

ARead Uncommitted
BRead Committed
CRepeatable Read
DSerializable

Correct answer: B

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