1.

State true or false: If I = read(Q) and J = write(Q) then the order of I and J does not matter.(a) True(b) FalseThis question was addressed to me in final exam.This question is from Serializability topic in division Transactions of RDBMS

Answer»

The CORRECT OPTION is (b) False

Easiest explanation: If I = read(Q) and J = write(Q) then the order of I and J MATTERS because both Iand J are different operations on the query. The order of execution determines the state of the DATABASE that is being read or written.



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