Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Chapter 18, Problem 10PE
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Practical applications of two-phase locking protocol
- Two-phase locking protocol is used for simple applications where a single granularity is accepted...
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Practical applications of two-phase locking with multiple granularity locking protocol
- It is used for applications where some applications access individual records and others access whole relations or substantial parts...
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Practical applications of tree protocol
- It is used for all applications that tend to access data items in an order consistent with a particular partial order...
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Practical applications of timestamp ordering protocol
- It is used if the application demands a concurrent execution that is equivalent to a particular serial ordering.
- Conflicts are handled by roll-back of transactions rather than waiting and schedules are also not recoverable...
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Practical applications of validation protocol
- If the probability of two conflict of two concurrently executing transaction is low, then this protocol can be used...
Explanation of Solution
Practical applications of multiversion timestamp ordering protocol
- It is used it timestamp ordering is appropriate...
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Practical applications of multiversion multiversion two phase locking protocol
- It allows read-only transactions to always commit without waiting.
- Update transactions follow two phase locking protocol and allows recoverable schedules with conflicts solved by waiting rather than roll-back...
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d'y + 4dy +3y = a, Initial Conditions: y(0) = 5 & y'(0)=0
Where a = 10
a) Find y(t) =yh(t) +yp(t) in time domainIs the system over-damped, under-damped, or critical?
b) Find y(t) using Laplace Transforms
Given f(t)=a sin(ßt)
a = 10 & ß = 23
Find the Laplace Transform using the definition F(s) = ∫f(t)e-stdt
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Chapter 18 Solutions
Database System Concepts
Ch. 18 - Prob. 1PECh. 18 - Prob. 2PECh. 18 - Prob. 3PECh. 18 - Prob. 4PECh. 18 - Prob. 5PECh. 18 - Prob. 6PECh. 18 - Prob. 7PECh. 18 - Prob. 8PECh. 18 - Prob. 9PECh. 18 - Prob. 10PE
Ch. 18 - Prob. 11PECh. 18 - Prob. 12PECh. 18 - Prob. 13PECh. 18 - Prob. 14PECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Prob. 19ECh. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 - Prob. 23ECh. 18 - Prob. 24ECh. 18 - Prob. 25ECh. 18 - Prob. 26ECh. 18 - Prob. 27ECh. 18 - Prob. 28ECh. 18 - Prob. 29ECh. 18 - Prob. 30ECh. 18 - Prob. 31ECh. 18 - Prob. 32ECh. 18 - Prob. 33ECh. 18 - Prob. 34ECh. 18 - Prob. 35ECh. 18 - Prob. 36E
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