Transaction processing

Question

W1(X)R2(Y)R1(Y)R2(X) ?

Is it view Serializable or Conflict or both ?

Comments

@srestha can u check this qus?

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yes I think it is both conflict serializable and also view serializable . there is a blind write W1(X) , so it is view serialzable Also we can tell any conflict serializable schedule is view serializable .rt?

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AFAIK same concept .

Answer 1

It is conflict searializable equivalent T1→T2 and also view searializable .

Comments

but here it is conflict.and according to source Any view serializable schedule that is not conflict serializable must contain a blind write.

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i said the same above

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what r thinking in above prblm ? what it should not be?

Answer 2

Here as no cycle is form in dependency graph,so it is conflict serializable...