PPT-Chap 21 – Concurrency Control

Author : ellena-manuel | Published Date : 2018-02-14

Database Concurrency Control 1 Purpose of Concurrency Control To enforce Isolation through mutual exclusion among conflicting transactions To preserve database

Presentation Embed Code

Download Presentation

Download Presentation The PPT/PDF document "Chap 21 – Concurrency Control" is the property of its rightful owner. Permission is granted to download and print the materials on this website for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.

Chap 21 – Concurrency Control: Transcript

Database Concurrency Control 1 Purpose of Concurrency Control To enforce Isolation through mutual exclusion among conflicting transactions To preserve database consistency through consistency preserving execution of transactions. Seminar: Transaction Processing (Bachelor). SS 2009. Dennis . Stratmann. Outline. Goal and Overview. Examine Three Approaches to CC on RD:. 1. Predicate-Oriented Concurrency Control. 2. Relational Update Transactions. -. Bhavya. . Kilari. Dr. . Yanqing. Zhang, . CSc. 8320. PREVIEW. P. ART. I. : . I. NTRODUCTION. Transaction Processing System. [. R. Chow & T. Johnson, 1997. 1. Copyright ©2012 Pearson Education, Inc. publishing as Prentice Hall. Chap 8-. 1. Chapter 8. Confidence Interval Estimation. Basic Business Statistics. 12. th. Edition. Chap 8-. 2. Copyright ©2012 Pearson Education, Inc. publishing as Prentice Hall. Prof. O. Nierstrasz. Selected material © Magee and Kramer. © Oscar Nierstrasz. 2. Roadmap. Modelling Concurrency. Finite State Processes . Labelled Transition Systems. Java Threads. Thread creation. 1. Copyright ©2012 Pearson Education, Inc. publishing as Prentice Hall. Chap 2-. 1. Chapter 2. Organizing and Visualizing Data. Basic Business Statistics. 12. th. Edition. Chap 2-. 2. Copyright ©2012 Pearson Education, Inc. publishing as Prentice Hall. Exercise . 20.16. Add . the operation commit at the end of each of the transactions T 1 and T 2 from. Figure . 20.2. ; then list all possible schedules for the modified transactions.. Determine which of the schedules are recoverable, which are . 1. Interblocage = impasse (Deadlock). Chapitre 8. http://w3.uqo.ca/luigi/. Chap 8. 2. Interblocages: concepts importants. Caractérisation: les 4 conditions. Graphes allocation ressources. Séquences de terminaison. 1. Synchronisation de Processus . (ou de threads, fils ou tâches). Chapitre 7. http://w3.uqo.ca/luigi/. Le problème. Chap. 7. 2. Chap. 7. 3. Problèmes avec concurrence = parallélisme. Les threads concurrents doivent parfois partager données (fichiers ou mémoire commune) et ressources. Mr. Pack. CHAP 8 Islam. Prior to 6. th. century- nomadic tribal Bedouins (polytheistic) in Arabia ruled by Sheikh.. Supreme deity (Allah)- sacred stone at . Mecca, stones believed to be inhabited by spirits (. Chap 16-. 1. Chapter 16. Time-Series Forecasting. Basic Business Statistics. 12. th. Edition. Chap 16-. 2. Copyright ©2012 Pearson Education, Inc. publishing as Prentice Hall. Chap 16-. 2. Learning Objectives. Prof. JANICKE. 2018. 2018. Chap. 13 -- Authentication. 2. AUTHENTICATION. A SUBSET OF RELEVANCE. AUTHENTICATION EVIDENCE IS. NEEDED BEFORE DOCUMENTS AND TANGIBLE THINGS ARE RECEIVED IN EVIDENCE. NOT NEEDED FOR TESTIMONY. Prof. JANICKE. 2018. Evid. Intro. Chap. 1. THE SUBJECT IS:. A BODY OF RULES, TELLING LAWYERS WHAT THEY CAN AND CAN’T (MOSTLY) DO TO . ESTABLISH FACTS. AT TRIAL. “LAW” POINTS ARE ESTABLISHED DIFFERENTLY; NO RULES OF EVIDENCE APPLY. P. JANICKE. 2018. ONLY “STATEMENTS. ” . CAN . BE . HEARSAY EVIDENCE – . CAN’T BE REVEALED IN COURT. MUCH HUMAN DISCOURSE IS NON-STATEMENT. 3. statements. UTTERANCES. MEANINGS. UTTERANCE = ANYTHING WE SAY OR WRITE. -. Bhavya. . Kilari. Dr. . Yanqing. Zhang, . CSc. 8320. PREVIEW. P. ART. I. : . I. NTRODUCTION. Transaction Processing System [. R. Chow & T. Johnson, 1997.

Download Document

Here is the link to download the presentation.
"Chap 21 – Concurrency Control"The content belongs to its owner. You may download and print it for personal use, without modification, and keep all copyright notices. By downloading, you agree to these terms.