'Lock table' diaporamas de présentation

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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DB Programming

DB Programming. Database Systems Presented by Rubi Boim. Basic MySQL Usage Little More Complex MySQL stuff.. JDBC Coding Tips. Agenda. There are 3 main groups of types: Numeric Date String http://dev.mysql.com/doc/refman/5.0/en/data-types.html. MySQL Data Types. Integers

1.08k views • 89 slides

DB Programming

DB Programming. Database Systems Presented by Rubi Boim. Project Details Basic Oracle Usage Little More Complex Oracle stuff.. JDBC Coding Tips. Agenda. Project Details Basic Oracle Usage Little More Complex Oracle stuff.. JDBC Coding Tips. Agenda. There are 3 main groups of types:

964 views • 87 slides

CSIS 7102 Spring 2004 Lecture 4 : Issues in locking techniques

CSIS 7102 Spring 2004 Lecture 4 : Issues in locking techniques. Dr. King-Ip Lin. Table of contents. Implementation of locks The phantom problem Multiple granularity locks Isolation levels. The story so far. Two-phase locking (2PL) as a protocol to ensure conflict serializability

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CS505: Intermediate Topics in Database Systems

CS505: Intermediate Topics in Database Systems. Jinze Liu. 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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SQL

SQL. DDL (Data Definition Language) Create Alter Drop Truncate Comment. SQL. DML (Data Manipulation Language) Insert Update Delete Call Explain plan Lock Table. SQL. DCL (Data Control Language) Commit Savepoint Rollback Set transaction Grant Revoke. SQL.

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Concurrency Control

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Concurrency Control

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Lecture 15: Dining Philosophers Problem

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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.

415 views • 16 slides

Concurrency Control Enforcing Serializability by Locks

Concurrency Control Enforcing Serializability by Locks. Krishna Nitin Tenali. INTRODUCTION. Enforcing serializability by locks Locks Locking scheduler Two phase locking. Locks. It works like as follows : A request from transaction Scheduler checks in the lock table

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Chapter 18.5: An Architecture for a Locking Scheduler

Chapter 18.5: An Architecture for a Locking Scheduler. Loc Nguyen Class ID: 213 Feb 27, 2008. Overview. Assume knowledge of: Lock Two phase lock Lock modes: shared, exclusive, update Consider a simple scheduler that: Insert locks for transaction Release locks when told. Lock table.

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Academic Systems-Oriented Database Research

Academic Systems-Oriented Database Research. Betty Salzberg Northeastern University HPTS 1999 presentation. A report from the October 1998 NSF workshop on industrial/academic cooperation in database systems. Speakers were from industry Audience was from academia

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