• 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
DBS Development Lifecycle and DB Analysis
DBS Development Lifecycle and DB Analysis

...  What is the purpose of your company? To prepare and sell quick service food to fulfill our guest's needs in a cleaner environment than our competitors.  Why do you need the DB? ...
Advanced Database Systems
Advanced Database Systems

... This will be marked holistically with bonus marks for clear diagrams of the various models but the key points to be covered are: Dimension modelling as a specialized example of an ER Model – both based on entities and relationships, the use of a fact table (with composite primary key) and a set of d ...
Managing Data Resources
Managing Data Resources

... A data warehouse is a database with reporting and query tools that stores current and historical data extracted from operational systems and consolidated for management reporting and analysis. The data originate from many core operational system and external sources and are copied into the data ware ...
SummerStudentReport-JosipDomsic
SummerStudentReport-JosipDomsic

... CERN is going for a large-scale virtualization of its more than 10’000 servers and all hypervisors and most virtual machines are centrally managed. However there are some legitimate use cases, which cannot be covered by this scheme. Therefore, service managers have the possibility to request physica ...
Lesson Slides Application Software
Lesson Slides Application Software

... by telephone and recorded in a diary. Customers’ details are kept on paper in a filing cabinet. The staff find this system easy to use. When Rosie bought a computer, the shop assistant suggested that she could use a database to replace the paper records. She explained that the records in the custome ...
PHP Bible – Chapter 13: SQL Tutorial
PHP Bible – Chapter 13: SQL Tutorial

... Keep database passwords out of the Web tree ...
BA271 Week 1 Lecture
BA271 Week 1 Lecture

... form allows you to view your data one record at a time. Forms are useful for maintaining, viewing, and printing records in a database. You can create your own form in the Forms Design window or you can use the Forms Wizard to create a form. ...
SQL
SQL

... persons, or unauthorized modification or destruction. ...
PostGIS Case Studies
PostGIS Case Studies

... – Either by lowering costs – Or by increasing functionality ...
Last saved 27 September 2004
Last saved 27 September 2004

read about the history and the basic ideas
read about the history and the basic ideas

GoFforRelDB - Computer Science Home
GoFforRelDB - Computer Science Home

... sequentially without exposing its underlying representation  Table traversal for simple queries ...
Insight Database Explorer a novel way to access your
Insight Database Explorer a novel way to access your

... Exploit information to improve your business To improve business means understanding it. To understand, one needs information. Ready-made reports provide only fixed view on the data and may leave large part of the information hidden. To uncover this information one needs a tool that enables posing q ...
Computer System Security and Management D0004E
Computer System Security and Management D0004E

... • Blind writes: updates that overwrite an existing entry. • For views defined WITH CHECK OPTION, UPDATE and INSERT can only write entries to the database that meet the definition of the view. • Blind writes possible if CHECK option is omitted. ...
Disk Storage
Disk Storage

... A read-write head moves to the track that contains the block to be transferred. Disk rotation moves the block under the readwrite head for reading or writing. A physical disk block (hardware) address consists of a cylinder number (imaginery collection of tracks of same radius from all recoreded surf ...
Managing Your Lotus Notes Mail Database Size 8/25/2010
Managing Your Lotus Notes Mail Database Size 8/25/2010

... Before you can archive a database, you need to specify archive settings. By default, the archive file is named archive\a_xxxxxx.nsf, where archive\ is the folder, and "a_" is prepended to the first six letters of the name of the database. When archiving is finished, a message will appear on the stat ...
HUAWEI OceanStor S5500T Exchange Server 2010 Solution with
HUAWEI OceanStor S5500T Exchange Server 2010 Solution with

... This solution is intended for medium-to-large enterprise that is planning to deploy Microsoft Exchange Server 2010 on HUAWEI storage and would like to leverage the Exchange Server 2010 mailbox resiliency Database Availability Group (DAG) feature. The solution design represents an Exchange Server 201 ...
Maximize DB Performance via Toad
Maximize DB Performance via Toad

Configuration_Options_and_Trace_Flag_Secrets
Configuration_Options_and_Trace_Flag_Secrets

... • T806 enables DBCC audit checks to be performed on pages to test for logical consistency problems. o These checks try to detect when a read operation from a disk does not experience any errors but the read operation returns data that is not valid. o Pages will be audited every time that they are re ...
Hiện trạng dữ liệu GIS và đề xuất phương án kỹ thuật thực hiện
Hiện trạng dữ liệu GIS và đề xuất phương án kỹ thuật thực hiện

... developed in Central level nd Provincial projects but most of them seem to be not updated. ...
COMPARISON AND SYNCHRONIZATION OF
COMPARISON AND SYNCHRONIZATION OF

What is JDBC Driver ? JDBC Drivers Types: Type 1: JDBC
What is JDBC Driver ? JDBC Drivers Types: Type 1: JDBC

PokerRoom.com Powers High Transaction Online Poker System
PokerRoom.com Powers High Transaction Online Poker System

... trend within the online gaming industry where different gaming services are being aggregated into one virtual location. During peak hours, 12,000 players occupy the poker tables. Since each bet, each played hand and other data are recorded, the database often handles 2,000 transactions per second. W ...
Anil Anand Resume - SAS Consultant Special Interest Group
Anil Anand Resume - SAS Consultant Special Interest Group

Sharing and Reproducing Database Applications
Sharing and Reproducing Database Applications

... and data dependencies. In addition to creating the execution trace and including it in the reproducibility package for the application, LDV also copies accessed files and database tuples into the package. We support two options for shipping the database. The server-include packaging option includes ...
< 1 ... 237 238 239 240 241 242 243 244 245 ... 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