0 votes 0 votes How it is view serializable? Databases databases view-serializable conflict-serializable + – vaishali jhalani asked Dec 16, 2016 retagged Jun 4, 2017 by Arjun vaishali jhalani 701 views answer comment Share Follow See 1 comment See all 1 1 comment reply santhoshdevulapally commented Dec 16, 2016 reply Follow Share Draw precedene graph.it is conflict and view serializable. 0 votes 0 votes Please log in or register to add a comment.
Best answer 2 votes 2 votes It is view serializable as $T_2 \rightarrow T_1$.. All three reads are initial read. No updated read Final writes done by $T_1$ (for both $X$ and $Y$) dd answered Dec 16, 2016 selected Jan 9, 2017 by vaishali jhalani dd comment Share Follow See all 10 Comments See all 10 10 Comments reply Show 7 previous comments dd commented Dec 16, 2016 reply Follow Share which book is it ? 0 votes 0 votes vaishali jhalani commented Dec 16, 2016 reply Follow Share korth 0 votes 0 votes Anusha Motamarri commented Dec 16, 2016 reply Follow Share definition said by debashish is correct.initial read means the value taken from database. as u know first condition for view serializability says: for each item data item Q,if Ti reads initial value of Q in S,then Ti in S' shud also read initial value of Q here both T1 and T2 are reading initial value of x in S so T1 and T2 shud also read initial value of x in S' this will be satisfied in serial schedule T2-->T1 as said by debashish, its view serializable 2 votes 2 votes Please log in or register to add a comment.