0 votes 0 votes Databases testbook-test-series databases transaction-and-concurrency + – Akash Kanase asked Jan 15, 2016 • edited Mar 11, 2019 by akash.dinkar12 Akash Kanase 517 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply joshi_nitish commented Oct 19, 2017 reply Follow Share it is view serilizable, equivalent to T1--->T2--->T3--->T4 1 votes 1 votes gari commented Jan 4, 2018 reply Follow Share hi @ joshi_nitish.. can u please explain it ... i am confused that as there is write read dependency .. so will we not consider that...and state it is non serializable... help needed :) 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes answer is non serilizable.i just can write a table to show dependency,but this question's answer is correct viv696 answered Jan 19, 2016 viv696 comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes There is no blind write, so answer is not view serializable. Answer is last one only. resilientknight answered Sep 12, 2016 resilientknight comment Share Follow See 1 comment See all 1 1 comment reply Nirjhar Roy commented Oct 19, 2017 reply Follow Share w3B-->r4A-->w2B this the blind write as data item B is written twice without being read even once. The read in between(r4A) is on a diff data item and not B so it wont be considered. This is view serilizable and one of the serial schedules is T1,T2,T3,T4 0 votes 0 votes Please log in or register to add a comment.
