Question: IMPORTANT NOTES: - Make your answer correct and clear. - Type your answer please don't answer by handwrite Is the following schedule 2PL ? Ex

IMPORTANT NOTES: - Make your answer correct and clear. - Type

IMPORTANT NOTES: - Make your answer correct and clear. - Type your answer please don't answer by handwrite

Is the following schedule 2PL ? Ex 1: A=1000,B=2000, Output = ? Lock X (A) > Read(A) Lock S(A) A:=A50 Write(A) Unlock(A) > Read(A) Unlock(A) Lock S(B) > Lock_X(B) Read(B) Unlock(B) PRINT(A+B) Read(B) B:=B+50 Write(B) Unlock(B) Is it a 2PL schedule? If not, modify it to follow rigorous 2PL

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Sa: r1(X); r2(X); w1(X); r1(Y); w2(X); c2; w1(Y); c1; What is the problem with that schedule even it is recoverable? IMPORTANT NOTES: - Make your answer correct and clear. - Type your answer please...

If we execute a transaction by mistake and it is committed, what can we do to correct the action of that transaction? IMPORTANT NOTES: - Make your answer correct and clear. - Type your answer please...

Why do we need to avoid deadlock and cascading abort even they are not affecting the correct database state? IMPORTANT NOTES: -Make your answer correct and clear. -Type your answer please don't...

a. If we relax C in CAP, what can we gain? b. If we relax A in CAP, what can we gain? IMPORTANT NOTES: - Make your answer correct and clear. - Type your answer please don't answer by handwrite. - If...

How is a horizontal partitioning of a relation specified? How can a relation be put back together from a complete horizontal partitioning IMPORTANT NOTES: - Make your answer correct and clear. - Type...

Compare between Strict 2PL and Rigorous 2PL And give examples (very important). IMPORTANT NOTES: - Put your answer in a comparison table. - Make your answer correct and clear. - Type your answer...

What is the difference between Conflict serializable schedule and view serializable schedule (at least 10 points). And give me examples ( very important). IMPORTANT NOTES: - Put your answer in a...

Compare between Conflict serializable schedule and View serializable schedule And give examples (very important). IMPORTANT NOTES: - Put your answer in a comparison table. - Make your answer correct...

Compare between Serial schedule and Serializable schedule And give examples (very important). IMPORTANT NOTES: - Put your answer in a comparison table. - Make your answer correct and clear. - Type...

Kaz purchases an article with a net price of $114.54 after a discount of 17% was allowed. Calculate the list price.

1. Discuss the idea of expert systems. 2. Summarize the conditions when expert systems should be utilized.

Retaining and motivating employees is the most important thing to do because their presence is the foundation of a firm. ( Mullins , 2 0 0 7 ) Because

Today, the renovation of Donald's restaurant has been completed. Donald calculates that the renovation and other related expenses total $24,000 on the completion date (i.e. today). He believes that...

Family coordination. Despite the eroding of the traditional family in many of the Soviet republics, there is evidence that family traditions and ties had survived despite Sovietization and...

branch ministries to which enterprises were directly subordinated, and which were responsible for translating directives of the functional committees into concrete operating decisions for the...

Self-governing coordination. The nominal character of cooperative enterprises was of self-governance, but only vestiges of a system of proposals or criticisms from below pertained in practice. It is...