3 votes 3 votes Which of the following is true? Blind writes appear in any view serializable schedule that is not conflict serializable. Blind writes appear in some view serializable schedule that is also conflict serializable. Blind writes appear in all view seriallzable schedules that are also conflict serializable. Blind writes appear only in conflict serializable schedule that is not view serializable. II and III II and IV I only I and II GATE tbb-mockgate-1 conflict-serializable transaction-and-concurrency serializability databases + – Bikram asked Jan 16, 2017 retagged Sep 17, 2020 by ajaysoni1924 Bikram 1.2k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 8 votes 8 votes " Any view serializable schedule that is not conflict serializable must contain a blind write." But presence of blind write doesnt mean that a given view serializable schedule is not conflict serializable. i.e., there are view serializable schedules with blind writes that are conflict serializable non conflict-serializable see this https://en.wikipedia.org/wiki/Blind_write Bikram answered Feb 7, 2017 edited Dec 30, 2018 by Arjun Bikram comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Correct answer should be option a. nandini gupta answered Jan 17, 2017 reshown Jan 18, 2017 by nandini gupta nandini gupta comment Share Follow See all 9 Comments See all 9 9 Comments reply Show 6 previous comments Prateek kumar commented Feb 1, 2017 reply Follow Share @Bikram sir, you trapped me with sequence of option given I marked in hurry just looking by option "D" but option "D" was for statement 1 1 votes 1 votes Nit9 commented Feb 5, 2017 reply Follow Share and even, with blind writes it not necessarily View serializable, it is necessary condition but not sufficient 1 votes 1 votes Kaluti commented Dec 30, 2018 reply Follow Share can someone give example to prove that point 0 votes 0 votes Please log in or register to add a comment.