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TEST01 :Q16 View/conflict Serialization

Printed From: One Stop GATE
Category: GATE AT A GLANCE
Forum Name: Test Series
Forum Discription: Discuss various Test Series available in the market before joining one.
URL: http://forum.onestopgate.com/forum_posts.asp?TID=693
Printed Date: 06Feb2025 at 3:51pm


Topic: TEST01 :Q16 View/conflict Serialization
Posted By: balu
Subject: TEST01 :Q16 View/conflict Serialization
Date Posted: 23Feb2007 at 2:56pm
 Q16:
The given sequence is

R(x)-T2
R(y)-T3
W(x)-T3
W(x)-T2
W(x)-T1
R(z)-T3
W(y)-T2
W(z)-T1


ans from gateforum is D, ie view but not conflict serializable!!!
above schedule is not conflict Seri. is true.
But how it is view serializable??
as per the view serial. properties,
it is not at all possible to have any serial schedule for above.

please let me know is above schedule is view or not!!!
if it is,then which serial sequence it is equivalent to??



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