'Access method' presentation slideshows

CSE544 Query Execution

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CHAPTER 10 MEMORY

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z/OS Data Sets, Disk VTOC,

z/OS Data Sets, Disk VTOC,. Master Catalog & User Catalogs. What is a data set?. Commonly known as a file in unix or linux. A data set is a collection of logically related data records stored on one disk storage volume or a set of volumes. A data set can be: a source program

1.34k views • 85 slides

File Systems

File Systems. Introduction. Overview of File Processing Files and File Operations Fundamental File Organizations and Access Methods Directories Mounting of File Systems File Protection Allocation of Disk Space Interface Between File System and IOCS. Introduction (continued).

968 views • 60 slides

Relational Query Optimization

Relational Query Optimization. Yanlei Diao UMass Amherst March 8 and 13, 2007. Slide Content Courtesy of R. Ramakrishnan, J. Gehrke, and J. Hellerstein. Overview of Query Evaluation.

604 views • 50 slides

IEEE 802.11 Wireless Local Area Networks (RF-LANs)

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7. Ethernet A Case study of Physical and Data Link Layer

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RAID in Practice, Overview of Indexing

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Performance Analysis of IEEE 802.11 Distributed Coordination Function (DCF)

Performance Analysis of IEEE 802.11 Distributed Coordination Function (DCF). (By Giuseppe Bianchi, 2000) Presented By: Sumegha Bagga 01/18/08. Outline. Introduction 802.11 DCF Maximum & Saturation Throughput Performance Throughput Analysis Model Validation Maximum Saturation Throughput

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Information Management and Distributed Data

Information Management and Distributed Data. Reagan W. Moore Wayne Schroeder Mike Wan Arcot Rajasekar Richard Marciano {moore, schroede, mwan, sekar, marciano}@sdsc.edu http://www.sdsc.edu/srb http://irods.sdsc.edu/. Data Grid Software. Storage Resource Broker http://www.sdsc.edu/srb

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Integrating a Heterogeneous Environment using XML

Integrating a Heterogeneous Environment using XML. Sandeepan Banerjee Director, Oracle Server Technologies. Synthesized Information. Excel Files on Disk. Financial Application. CRM Application. E-Mail and Document Repositories. Contract Management Application. The Problem.

495 views • 25 slides

RMDCN Technical Solution

RMDCN Technical Solution. Tony Bakker WAN Group Leader, Network Section ECMWF. Agenda (1). Background & Requirements EQUANT Solution Access Frame Relay X25 access X25-Frame Relay Gateway. Agenda (2). Backup options ISDN/PSTN Dialup Mission Critical environment TCP/IP Issues

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May 9-12, 2006

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Schema Tuning

Schema Tuning. Outline. Index Utilization Heap Files Definition: Clustered/Non clustered, Dense/Sparse Access method: Types of queries Constraints and Indexes Locking Index Data Structures B+-Tree / Hash LSM Tree / Fractal tree Implementation in DBMS Index Tuning

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Network Operations & administration CS 4592 Lecture 18

Network Operations & administration CS 4592 Lecture 18. Instructor: Ibrahim Tariq. Taxonomy of Multiple-Access Protocols. 12-3 CHANNELIZATION.

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Lec#5 part 2

Lec#5 part 2. Multiple Access Methods. Multiple Access Methods. Multiple Access Methods. When nodes or stations are connected and use a common link (cable or air) , called a multipoint or broadcast link, we need a multiple-access protocol to coordinate access to the link.

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Ch 13. Wired LANs: Ethernet

Ch 13. Wired LANs: Ethernet. 13.1 IEEE Standards. Project 802 launched in 1985 To set standards to enable intercommunication among equipment from a variety of manufacturers. Data Link Layers. Framing Logical Link Control (LLC) Medium Access Control (MAC) CSMA/CD for Ethernet LAN

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Module 4 Database Tuning

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Access methods for time-evolving data

Presenters : Virag Kothari ,Vandana Ayyalasomayajula Date: 04/21/2010. Access methods for time-evolving data. Outline. Introduction to temporal databases Goal of the paper Access method costs Queries Index pagination & Data Clustering

290 views • 16 slides

Week 14 Reading a File

Week 14 Reading a File. Loops. Files. File - collection of records. Logical records - represent entities (persons, places, objects, things, etc.). 1234567890123456 John Smith 12000 500.00. 1234654321098765 Richard Roe 12000 500.00. Fields - describe properties of the entities.

228 views • 11 slides