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Category > Computer Science Posted 22 May 2017 My Price 6.00

Consider the following actions taken by transaction

 

Exercise 16.2  Consider the following  actions taken by transaction 1'1 on database objects

X  and Y:

 

R(X),  W(X),R(Y),  W(Y)

 

1.    Give an example of another transaction 1'2 that, if run concurrently to transaction  without some form of concurrency control, could interfere with 1'1.

2.     Explain how the use of Strict 2PL would prevent interference between the two transac• tions.

 Strict  2PL  is  lIsed  in  many  database  systems.   Give  two  reasons  for  its popularity.


 

 

 
 

Answers

Alpha Geek
(8)
Status NEW Posted 22 May 2017 11:05 AM My Price 6.00

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