'Key values' diaporamas de présentation

Principles and Dynamics of Management

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The Relational Database Model

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862 views • 68 slides

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MapReduce Theory, Implementation and Algorithms

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Database Introduction and Terminology

Database Introduction and Terminology. Alan Schneider. Database Introduction and Terminology Overview. Types of Databases Operational / OLTP Analytical / DW Operational Data Stores / ODS Database Evolution Hierarchical Network Relational Database Terminology Value-Related

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VSAM KSDS and COBOL

VSAM KSDS and COBOL. Department of Computer Science Northern Illinois University August 2005. Some of the illustrations are from VSAM: Access Method Services and Programming Techniques by James Martin. Processing a KSDS. KSDS can be processed 3 ways Sequentially

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Essentials of Systems Analysis and Design Third Edition Joseph S. Valacich Joey F. George Jeffrey A. Hoffer

Essentials of Systems Analysis and Design Third Edition Joseph S. Valacich Joey F. George Jeffrey A. Hoffer. Chapter 9 Designing Databases. 9.1. Learning Objectives. Define each of the following database terms Relation Primary key Functional dependency Foreign key Referential integrity

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Chapter 12: Indexing and Hashing

Chapter 12: Indexing and Hashing. Lecture23. Basic Concepts Ordered Indices B+-Tree Index Files B-Tree Index Files Static Hashing Dynamic Hashing Comparison of Ordered Indexing and Hashing Index Definition in SQL Multiple-Key Access. Basic Concepts.

938 views • 49 slides

Data Storage Formats

Data Storage Formats. Files Electronic lists of data that have been optimized to perform a particular transaction Databases Logical groupings of data that are related to each other . Data Design. File oriented system Data files are designed to fit individual systems

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Project Stuff

Project Stuff Reminder: Phase II is due next week (Thursday, April 10) Read the project description and what each phase is asking for! After some discussion with the TA, I have simplified the project a bit and clarified some other parts of it, as follows:

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Cryptography and its Assurance

Cryptography and its Assurance. Steve Hallett CFS IA November 2010. Agenda. Cryptography 101, not Why the need for Assurance? Why is Assurance Problematic for Cryptography? Types of Assurance Cryptanalysis and Peer Review Governance Framework Architecture, Design and Implementation

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A Fast and Compact Method for Unveiling Significant Patterns in High-Speed Networks

A Fast and Compact Method for Unveiling Significant Patterns in High-Speed Networks. Tian Bu 1 , Jin Cao 1 , Aiyou Chen 1 , Patrick P. C. Lee 2 Bell Labs, Alcatel-Lucent 1 Columbia University 2 May 10, 2007. Outline. Motivation Why heavy-key detection? What are the challenges?

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Cryptography and Network Security Chapter 13

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Components of a Career Plan

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Cryptography and Network Security (Authentication Protocols and Digital Signatures)

Cryptography and Network Security (Authentication Protocols and Digital Signatures). Fourth Edition by William Stallings Lecture slides by Lawrie Brown (Changed by Somesh Jha). Digital Signatures. have looked at message authentication using hash functions

796 views • 20 slides

Hashing Techniques

Hashing Techniques. CST203-2 Database Management Systems Lecture 7. Disadvantages on index structure: We must access an index structure to locate data, or must use binary search, and that results in more I/O operations Space taken by index structure

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Hashing

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More on the Relational Database Model

More on the Relational Database Model. We have presented details of four basic steps involved in relational database design: Identification of entities Identification of candidate key fields and actual key fields Creation of entity-relationship diagram Design of relational database

350 views • 16 slides