'Exclusive lock' presentation slideshows

Carnegie Mellon Univ. Dept. of Computer Science 15-415 - Database Applications

Carnegie Mellon Univ. Dept. of Computer Science 15-415 - Database Applications. Concurrency Control, II (R&G ch . 17). Review. DBMSs support ACID Transaction semantics . Concurrency control and Crash Recovery are key components. Review.

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Concurrency Control

937 views • 73 slides

TB-6 Coding Best Practices Tips, Tricks, Hints and Suggestions To Improve Your Code

TB-6 Coding Best Practices Tips, Tricks, Hints and Suggestions To Improve Your Code Tom Bascom, White Star Software Wednesday 12:30-13:30

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A Shape Analysis for Optimizing Parallel Graph Programs

A Shape Analysis for Optimizing Parallel Graph Programs. Dimitrios Prountzos 1 Keshav Pingali 1,2. Roman Manevich 2 Kathryn S. McKinley 1. 1: Department of Computer Science, The University of Texas at Austin

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Bigtable : A Distributed Storage System for Structured Data

Bigtable : A Distributed Storage System for Structured Data. F. Chang, J. Dean, S. Ghemawat , W.C. Hsieh, D.A. Wallach M. Burrows, T. Chandra, A. Fikes , R.E. Gruber Google, Inc . Tianyang HU. Outline. Introduction Data Model Building Blocks Implementation Refinements

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Outline

Outline. Introduction Background Distributed Database Design Database Integration Semantic Data Control Distributed Query Processing Multidatabase Query Processing Distributed Transaction Management Transaction Concepts and Models Distributed Concurrency Control

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Chapter 9_B

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Introduction to Data Management CSE 344

Introduction to Data Management CSE 344. Lecture 23: Transactions. Announcements. HW6 is due tonight Webquiz due next Monday HW7 is posted: Some Java programming required Plus connection to SQL Azure Please attend the quiz section for more info!. Outline.

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Chapter 11: Transaction Concepts

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Database Systems ( ????? )

Database Systems ( ????? ) . 9/19 & 9/24, 2007 Lecture #1. Course Goals. First course in database systems. Learning objective Use a relational database Build a relational database . Fundamentals ER (Entity-Relationship) Model SQL (Structured Query Language) Storage and indexing

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Transactions

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Data Manipulation

Data Manipulation. Chapter Objectives. Add a record to an existing table Add a record containing a NULL value to an existing table Use a subquery to copy records from an existing table Modify the existing rows within a table. Chapter Objectives.

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Chimera: Data Sharing Flexibility, Shared Nothing Simplicity

Chimera: Data Sharing Flexibility, Shared Nothing Simplicity. Umar Farooq Minhas University of Waterloo David Lomet , Chandu Thekkath Microsoft Research. Distributed database architectures. In a shared nothing system a single node can only access local data

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Files

Files. uniform logical view of information storage mapped to physical devices: magnetic disks, magnetic tapes, and optical disks non-volatile ( ??????????????????????? ?????????? volatile ???? RAM). Physical device ?????? uniform. File Attributes. Name Identifier (id) Type

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Concurrency Control Architecture for a Locking Scheduler Section 18.5

Concurrency Control Architecture for a Locking Scheduler Section 18.5. Presented By: Akash Patel ID: 113. Overview. Overview of Locking Scheduler Scheduler That Inserts Lock Actions The Lock Table Handling Locking and Unlocking Request . Principles of simple scheduler architecture.

509 views • 16 slides

Outline

Outline. Introduction Background Distributed DBMS Architecture Distributed Database Design Distributed Query Processing Distributed Transaction Management Transaction Concepts and Models Distributed Concurrency Control Distributed Reliability Building Distributed Database Systems (RAID)

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Chapter 18 Concurrency control Section 18.4

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Transactions

Transactions . Concurrency Control. Improved lock-based concurrency with multiple writes. Update Locks. Shared & Exclusive Locks. An Example. 11 steps. Upgrading Locks. Use Shared Locks when reading Upgrade (if possible) to Exclusive Lock when just before writing

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Concurrency Control

Concurrency Control. ?????? ???? ???????. ?????? ????. When several transactions execute concurrently in the database, the consistency of data may no longer be preserved.

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Shoco Oil/Sam Hill Oil 2008 1 st Annual Customer Appreciation Award

Shoco Oil/Sam Hill Oil 2008 1 st Annual Customer Appreciation Award. This toolbox could be yours!. Shoco Oil/Sam Hill Oil 2008 1 st Annual Customer Appreciation Award.

329 views • 3 slides