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Explain Dynamic Two-Phase Locking
Here a transaction locks a data item instantly earlier than any operation is applied on the data item. After finishing all the operations on all the data items, it releases all the locks. An instance of dynamic 2PL is as following
X(X)
Read (X)
X=X+M
Write (X)
X (Y)
Read (Y)
Y=Y+N
Write Y
Unlock (Y)
Unlock (X)
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average response time?
CAN SOMEONE HELP ME WITH ENTITY DIAGRAMS IN FIRST NORMAL FORM?
What is average response time? The average response time is that the average time for a transaction to be done after it has been submitted.
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