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Two Phase Locking, Lecture 3 (BHG , Chap. 3)

Two Phase Locking, Lecture 3 (BHG , Chap. 3). The practical foundation. Topics. Part I: Foundations Part II: Beyond Basic Locking Part III: Degrees of Isolation Part IV: Viewing B+-tree Operations as Transactions. Part I: Foundations. Aggressive and Conservative Schedulers.

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CS216: Data-Intensive Computing Systems

CS216: Data-Intensive Computing Systems. Concurrency Control (II). Shivnath Babu. How to enforce serializable schedules?. Option 1: run system, recording P(S); at end of day, check for P(S) cycles and declare if execution was good. How to enforce serializable schedules?.

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TRANSACTION PROCESSING SYSTEM ROHIT KHOKHER

TRANSACTION PROCESSING SYSTEM ROHIT KHOKHER. UNIT -4 TRANSACTION PROCESSING CONCEPTS. TRANSACTION RECOVERY TRANSACTION RECOVERY TRANSACTION STATES SERIALIZABILITY CONFLICT SERIALIZABILITY VIEW SERIALIZABILITY RECOVERABLE SCHEDULE CASCADE LESS SCHEDULE CONCURRENCY AND ITS PROBLEM

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460 views • 22 slides

Optimistic Concurrency Control

Optimistic Concurrency Control . 6.830 / 6.814 Lecture 14 10/27/2014. OCC Runtime. twrite ( n,i,v ): if n not in write_set // never written, make copy m = copy(n); copies[n] = m; write_set = write_set union {n}; write(copies[n], i , v))) tread ( n,i ):

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230 views • 6 slides

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Two Phase Locking, Lecture 3 (BHG , Chap. 3)

CS216: Data-Intensive Computing Systems

TRANSACTION PROCESSING SYSTEM ROHIT KHOKHER

Optimistic Concurrency Control