• 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
Lecture9 - The University of Texas at Dallas
Lecture9 - The University of Texas at Dallas

Customizing Clinical Data Warehouse for Business Intelligence
Customizing Clinical Data Warehouse for Business Intelligence

... assurance problems. It can be risky because any alteration of the original data might result in a different conclusion. Records with “abnormal” values could be exactly what is interesting. That does not suggest that we should not do some data cleaning. Mostly, database administrators will report dat ...
Remotely administered over 100 production databases, at various
Remotely administered over 100 production databases, at various

... Skills Used: Data warehousing, Data Cube, Data Analysis, financial modeling Achievements: Designed, developed and implemented OLAP financial reports under a very tight schedule for the Department of Public Works. Provided financial information, using SQL Server Reporting Services, for land acquisiti ...
The OSI Model
The OSI Model

... •like higher level languages and machine language ...
ch18
ch18

...  In this case, choose the attribute for ordering or clustering the tuples as: – attribute that is used most often for join operations - this makes join operation more efficient, or – attribute that is used most often to access the tuples in a relation in order of that attribute. Pearson Education © ...
Physical Database Design for Relational Databases
Physical Database Design for Relational Databases

...  In this case, choose the attribute for ordering or clustering the tuples as: – attribute that is used most often for join operations - this makes join operation more efficient, or – attribute that is used most often to access the tuples in a relation in order of that attribute. Pearson Education © ...
Structure Learning for Markov Logic Networks with Many Descriptive
Structure Learning for Markov Logic Networks with Many Descriptive

... of nodes as follows: (1) one node for each descriptive attribute, of both entities and relationships, (2) one Boolean node for each relationship table. For each type of entity, we introduce one first-order variable. There are data patterns that require more than one variable per entity type to expre ...
Searching of images stored in a database using content and pixel
Searching of images stored in a database using content and pixel

... library. Using QBIC, we established a database for the following characteristics of images: color, text, color histogram, and texture feature. We query the database for those images in the library with the most similar characteristics to the input image. On this set of candidates, we apply the norma ...
Organizational Intelligence
Organizational Intelligence

Searching the Deep Web  What is
Searching the Deep Web What is

... •  Other challenges to further extend ability to extract and organize data: –  Automatically extract data from general pages –  Combining data from multiple sources •  general, not custom, solution ...
primary key
primary key

...  SQL:1999 also supports a rich set of imperative constructs, including ...
Document
Document

... • First two situations can be handled by simply checking the values in columns to see if they are legitimate • Last two are handled in SQL2 by the Delete and Update Rules • DELETE and UPDATE rules tell the DBMS what to do when the user tries to delete or update a row in the parent table ...
The Top 5 Use Cases of Graph Databases
The Top 5 Use Cases of Graph Databases

... identifiers should be (almost) one-to-one. Some variations naturally account for shared machines, families sharing a single credit card number, individuals using multiple computers and the like. However, as soon as the relationships between these variables exceed a reasonable number, fraud should be ...
Continuous Queries and Publish/Subscribe
Continuous Queries and Publish/Subscribe

... A system that keeps a database of all mail and news messages received. Designed to filter mail and newsgroup messages. Allows users to query over this database. Since Tapestry doesn't use triggers (time is used), it can be implemented in any commercial database that supports SQL ...
Overview of Data Modeling Using IBM Graphical Tools
Overview of Data Modeling Using IBM Graphical Tools

...  Data modeling is a method used to define and analyze data requirements needed to support the business processes of an organization  Data modeling is used to communicate the business rules and processes  Data modeling is the process of creating a blueprint to visually represent data, its organiza ...
ppt format
ppt format

... – simplest form of integrity constraint – type declarations are one such domain constraint (e.g., integer, floating point, double-precision, fixed length character string). – domains can be further restricted (e.g., check clause in SQL can ensure that hourly wages are  4.00 dollars) – easily tested ...
第11 章
第11 章

... Indexes and Query Optimization • Data sparsity: number of different values a column could possibly have • Indexes implemented using: (課本 p. 453) – Hash indexes – B-tree indexes: most common index type. Used in tables in which column values repeat a small number of times. The leaves contain pointers ...
Data Management and Database Technologies - Indico
Data Management and Database Technologies - Indico

... “There is a need to keep an index of all the controls entities and their parameters coming from different controls systems. Each controls entity has a name, description and location. For every entity there might be several parameters that are characterized by their name, description, unit, quantity ...
004.02 Paterson Object Persistence December 2004
004.02 Paterson Object Persistence December 2004

... – selected objects are initially marked as being persistent – thereafter, changes in those objects are transparently changed in the database, and the programmer does not have to write code specifically to update the database – the framework handles the mapping of the objects to relational database t ...
keep strong points, work on weaker ones - LHCb Computing
keep strong points, work on weaker ones - LHCb Computing

... – The work started to provide single interface to both AliEn FileCatalogue and LHCb Bookkeeping ; ...
Predictive Analytics of Cluster Using Associative Techniques Tool
Predictive Analytics of Cluster Using Associative Techniques Tool

... performed by these algorithms on database. Only some samples of data are taken and classify according their properties. In future the proposed algorithm can be applied on any type files. The variety and quantity of data is constant in this work so in future we can vary these issues also. ...
- Courses - University of California, Berkeley
- Courses - University of California, Berkeley

... • Many physical database design decisions are implicit in the technology adopted – Also, organizations may have standards or an “information architecture” that specifies operating systems, DBMS, and data access languages -- thus constraining the range of possible physical implementations. ...
Elmasri_6e_Ch01
Elmasri_6e_Ch01

... Characteristics of the Database Approach Actors on the Scene Workers behind the Scene Advantages of Using the DBMS Approach A Brief History of Database Applications When Not to Use a DBMS Copyright © 2011 Ramez Elmasri and Shamkant Navathe ...
Elmasri_6e_Ch01.ppt
Elmasri_6e_Ch01.ppt

... Characteristics of the Database Approach Actors on the Scene Workers behind the Scene Advantages of Using the DBMS Approach A Brief History of Database Applications When Not to Use a DBMS Copyright © 2011 Ramez Elmasri and Shamkant Navathe ...
Chapter 17 - SaigonTech
Chapter 17 - SaigonTech

... executeBatch. Executes a group of commands as a unit, returning an array with the update counts for each command setQueryTimeout. Specifies the amount of time a driver waits for the result before throwing an SQLException. getMaxRows/setMaxRows. etermines the number of rows a ResultSet may contain ...
< 1 ... 472 473 474 475 476 477 478 479 480 ... 781 >

Database model



A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report