• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Distributed Databases
Distributed Databases

... distributed database, the idea of centralized control is much less emphasized. In general, in DDB it is possible to identify a hierarchical control structure based on a global database administrator, who has the central responsibility of the whole database and on local database administrators, who h ...
Semiconductor Issues
Semiconductor Issues

Your Database as an Organizing Tool
Your Database as an Organizing Tool

... A strong, functional database  Is up to date  Contains full contact information for each person or organization on your list  Allows you to tell who is a leader, member, supporter or volunteer  Has a way to track the interests/activities of members and supporters  Can help you track donations ...
Cross-platform control software for Brewer
Cross-platform control software for Brewer

... The fully automated Brewer Spectrophotometer provides high quality total ozone column data, ozone vertical profiles, spectral UV radiation, aerosol optical depth as well as columns of sulfur dioxide and nitrogen dioxide. The Brewer control software was developed more than 30 years ago for IBM compat ...
Version 1.2 - Course Module Slide Options
Version 1.2 - Course Module Slide Options

... management using drag-and-drop functions, drop-down menus, or both.  A graphic designer, such as Jet SQL, is used in the Microsoft Access application to extract, manipulate, and structure data that resides in a relational database management system (RDBMS).  Jet SQL is based largely on the ANSI SQ ...
store Java objects without using SQL
store Java objects without using SQL

Document
Document

... database was accessed • Improper or incomplete transactions can have a devastating effect on database integrity – Some DBMSs provide means by which user can define enforceable constraints based on business rules – Other integrity rules are enforced automatically by the DBMS when table structures are ...
Distributed Database Systems
Distributed Database Systems

... system each site typically maintains its own log file. Another common technique for guarding against system failure is to make new copies of the disk pages where the data to be updated resides. ...
GENIE and DANSE: two Atomic and Molecular Data Web Search
GENIE and DANSE: two Atomic and Molecular Data Web Search

... 4. Gas-surface interactions 5. Properties of atoms and molecules A user is allowed to select one or more databases for querying and the original format of the query output is retained for each of the databases. Parameters and scientific fields may differ from one database to another one. Then upon a ...
ITY276 presentation 3 - University Of Worcester
ITY276 presentation 3 - University Of Worcester

... relational database would be hard coded and made available as an API (application program interface)  a client application then had to be written to use the proprietary API Even then, there was a problem: ...
biochemical_databases-2007-tobias-kind-v10
biochemical_databases-2007-tobias-kind-v10

... • Inhale the good DB and bad DB scheme and apply when you enter a DB portal • Learn some basic database programming (Ruby on Rails, JAVA, SQL) using bioinformatics and chemoinformatics approaches is crucial for research • Learn how to import and store and handle database search results on your local ...
Introduction to SQL
Introduction to SQL

... Database systems store information in every conceivable business environment. From large tracking databases such as airline reservation systems to ATM application, database systems store and distribute the data that we depend on. ...
APPENDIX BB Database Administration Document Template
APPENDIX BB Database Administration Document Template

... including scheduled jobs, tuning, replication, data retention, etc. Reminder: Click the show/hide icon on your tool bar to view examples of the required input. ...
Sql_Server_Architecture_for_World_Domination
Sql_Server_Architecture_for_World_Domination

... • Cost effective • Highly availability • Flexible + Scalable ...
PPT - Open Access Repository
PPT - Open Access Repository

... API is offered by the DBMS is of consideration. Those indicated above all have :  C and Perl APIs ...
Final Presentation - Levi D. Smith Games and Entertainment
Final Presentation - Levi D. Smith Games and Entertainment

... David Morgan, Scott Hoyle, Shane Mueller http://www.lockheedmartin.com ...
COP 6731 Theory and Implementation of Database Systems Credits
COP 6731 Theory and Implementation of Database Systems Credits

... Reference materials: Reading assignments from Oracle Database on-line documentation. Specific course information: Catalog description: The investigation of the fundamental principles and practices of relational database processing and design. Topics include SQL, embedded SQL, integrity constraints, ...
ACIT1630
ACIT1630

... to the resources available in support of the Institute mission. Computer Systems Technology students are expected to exercise the highest degree of professionalism and ethical behaviour related to information technology. Violations of BCIT Policy #3501 will result in disciplinary action which may in ...
How data is stored
How data is stored

... • There are also certain tasks that must be done on a regular basis. • These include creating back-up copies of the data held on the database. • This needs to be done to protect the data from damage or corruption and to ensure that if damage or corruption occurs, all the data is not lost. ...
5.01 Outline Notes
5.01 Outline Notes

... The relationship enhances the power of the database by allowing retrieval of data from both sources and eliminating the need for data duplication among tables. ...
A Technical Overview of SQL 2005 High Availability Features
A Technical Overview of SQL 2005 High Availability Features

... • Database snapshots can be used to protect against application, user, or administrative error • Use the new optimistic concurrency controls and ONLINE index operations to reduce database ...
Database Management System (DBMS) an Introduction
Database Management System (DBMS) an Introduction

... • The purpose of a database is to keep track of things • Unlike a list or spreadsheet, a database may store information that is more complicated than a simple list ...
Generalized Multidimensional Association Rules 1 Introduction
Generalized Multidimensional Association Rules 1 Introduction

Chapter 1
Chapter 1

... data (and a description of this data), designed to meet the information needs of an organization. ...
Chapter 12 - KSU Web Home
Chapter 12 - KSU Web Home

... ER Diagram A graphical representation of an ER model Cardinality constraint The number of relationships that may exist at one time among entities in an ER diagram ...
< 1 ... 364 365 366 367 368 369 370 371 372 ... 459 >

Concurrency control

In information technology and computer science, especially in the fields of computer programming, operating systems, multiprocessors, and databases, concurrency control ensures that correct results for concurrent operations are generated, while getting those results as quickly as possible.Computer systems, both software and hardware, consist of modules, or components. Each component is designed to operate correctly, i.e., to obey or to meet certain consistency rules. When components that operate concurrently interact by messaging or by sharing accessed data (in memory or storage), a certain component's consistency may be violated by another component. The general area of concurrency control provides rules, methods, design methodologies, and theories to maintain the consistency of components operating concurrently while interacting, and thus the consistency and correctness of the whole system. Introducing concurrency control into a system means applying operation constraints which typically result in some performance reduction. Operation consistency and correctness should be achieved with as good as possible efficiency, without reducing performance below reasonable levels. Concurrency control can require significant additional complexity and overhead in a concurrent algorithm compared to the simpler sequential algorithm.For example, a failure in concurrency control can result in data corruption from torn read or write operations.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report