• Study Resource
  • Explore Categories
    • 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
I accidently left the next generation Sports DB prototype on a bar stool!
I accidently left the next generation Sports DB prototype on a bar stool!

...  The newspapers print yet another data-loss story which surprises no one  Your customers suffer losses and are upset ...
Design and Implementation of an Extensible Database Management
Design and Implementation of an Extensible Database Management

... function belongs to two or more types. Consider, for example, the problem of converting the value of one abstract data type to a value of another abstract data type. This conversion function belongs to both abstract data types. If only pure abstract data types are supported, the conversion function ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth Edition
Elmasri/Navathe, Fundamentals of Database Systems, Fourth Edition

... Views defined using groups and aggregate functions are not updateable Views defined on multiple tables using joins are generally not updateable  WITH CHECK OPTION: must be added to the definition of a view if the view is to be updated – to allow check for updatability and to plan for an execution ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth Edition
Elmasri/Navathe, Fundamentals of Database Systems, Fourth Edition

... Views defined using groups and aggregate functions are not updateable Views defined on multiple tables using joins are generally not updateable  WITH CHECK OPTION: must be added to the definition of a view if the view is to be updated – to allow check for updatability and to plan for an execution ...
When Development Means Business FY2000 First Quarter
When Development Means Business FY2000 First Quarter

... “The truth of the matter. The RDBMS is not going anywhere anytime soon, if ever. Even ignoring serious issues such as relational data representation in XML, the DBMS technology is a core part of too many applications in use today. Although XML may be a realistic possibility for some smaller applicat ...
236-2011: Using Microsoft Access 2007 Description of Field Names
236-2011: Using Microsoft Access 2007 Description of Field Names

... the database tables as labels for SAS dataset variables. SAS v9.2 does not have the capability of importing descriptions from Access. Also, Microsoft Access does not allow the analyst to copy this information, available from the table in the design view, in a simple manner as each description has to ...
Document
Document

... data. It is sometimes necessary because current DBMSs implement the relational model poorly. A true relational DBMS would allow for a fully normalized database at the logical level, while providing physical storage of data that is tuned for high performance. De-normalization is a technique to move f ...
Blaeu: Mapping and Navigating Large Tables with Cluster Analysis
Blaeu: Mapping and Navigating Large Tables with Cluster Analysis

... We will successively demonstrate Blaeu with three databases, presented in increasing order of size and complexity. • The Hollywood dataset presents data about 900 Hollywood movies released between 2007 and 2013. It contains 12 columns. Which films are the most profitable? Which are those that fail? ...
download
download

... “The library stocks books, identified by an ISBN. Each book has a title, one or more authors, and a publisher. There can be multiple copies of a book. A borrower can borrow up to six books at any one time, for up to three weeks. When a loan is made, the ISBN, borrower number, date of loan and return ...
Chapter 6: Integrity Constraints
Chapter 6: Integrity Constraints

... • Weak entity sets are also a source of referential integrity constraints. For, the relation schema for a weak entity set must include the primary key of the entity set on which it depends. ...
Lab 13-final
Lab 13-final

... % operator is used inside the like operator. Ex. ‘%United’- Returns strings which ends with with United ‘United%’ - Returns string which starts with United ‘%United%’- Returns string which contains United irrespective of the location. ...
Mirroring at Baker Hostetler
Mirroring at Baker Hostetler

... http://sqlcat.com/technicalnotes/archive/2007/12/17/asynchronous-database-mirroringwith-log-compression-in-sql-server-2008.aspx Database Mirroring White Paper http://download.microsoft.com/download/4/7/a/47a548b9-249e-484c-abd729f31282b04d/DatabaseMirroring.doc Database Mirroring: Best Practices and ...
pdf file
pdf file

... practice the number of possible worlds can be prohibitively large. One solution to this problem is to introduce an intermediate level between the database and the user that verifies that the messages (output and input) that are passed between the database and the user are the same in all worlds, and ...
Distributed Query Processing
Distributed Query Processing

... – define the subset of queries that can be handled – give cost information, statistics – „capability-based rewrite“ (HKWY, VLDB 1997) ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth
Elmasri/Navathe, Fundamentals of Database Systems, Fourth

... Views defined using groups and aggregate functions are not updateable Views defined on multiple tables using joins are generally not updateable  WITH CHECK OPTION: must be added to the definition of a view if the view is to be updated – to allow check for updatability and to plan for an execution ...
XPages CheatSheet v1
XPages CheatSheet v1

The Database Environment
The Database Environment

... New, specialized personnel Installation and management cost and complexity Conversion costs Need for explicit backup and recovery Organizational conflict ...
Chapter 7: Relational Database Design
Chapter 7: Relational Database Design

...  Table inheritance is useful for modeling roles  permits a value to have multiple types, without having a most-specific type (unlike type inheritance).  e.g., an object can be in the students and teachers subtables simultaneously, without having to be in a subtable student-teachers that is under ...
A Database System for Time
A Database System for Time

... relations are extracted and manipulated using the traditional relational algebra operators. Navathe and Ahmed [NAVATHE 89] define a temporal relational model. In this model, attributes may be non-time-varying or time-varying. All attributes of a relation must be of the same type. Time is associated ...
D2RQ
D2RQ

... to for RDF dumps in various formats ...
An overview of GUS - University of Georgia
An overview of GUS - University of Georgia

... Plugins are the interface with the GUS object layer you will lose to put data into GUS. Plugins provide command line interfaces giving you access to the PERL object layer. All plugins invoke the objects which were created to represent the GUS data model as well as other objects such as those for mak ...
69 - ICM Software House
69 - ICM Software House

... Oracle SQL and PL/SQL Fundamentals training delivers the fundamentals of SQL and PL/SQL along with the benefits of the programming languages using Oracle Database technology. It helps you understand the benefits of powerful programming language, while teaching you real-world scenarios. In this cours ...
GENOME: A Networked Database Environment for Human Genome
GENOME: A Networked Database Environment for Human Genome

... maintain function. The MITOMAP GENOME database allows us to further explore the relationships between disease information, DNA sequence and other genetic data. Complex genetic and environmental interactions are expected to contribute heavily to the etiology of most common diseases. This area of medi ...
2 Architecture of MOLAP Aggregates in BW 3.0
2 Architecture of MOLAP Aggregates in BW 3.0

... Figure 3 shows the situation for MOLAP aggregates. In BW 3.0, InfoCubes have aggregates that are either based on the ROLAP or on the MOLAP scenario. Mixed scenarios are not possible. However, it is fairly easy (but not necessarily fast – this depends on the associated data volumes) to switch between ...
PPD v1.0—an integrated, web-accessible database of
PPD v1.0—an integrated, web-accessible database of

... enzyme catalysis. The PPD serves as a general protein pKa archive and as a source of data that allows for the development and improvement of pKa prediction systems. The database is accessed through an HTML interface, which offers two fast, efficient search methods: an amino acid-based query and a Ba ...
< 1 ... 236 237 238 239 240 241 242 243 244 ... 610 >

Database

A database is an organized collection of data. It is the collection of schemes, tables, queries, reports, views and other objects.The data is typically organized to model aspects of reality in a way that supports processes requiring information, such as modelling the availability of rooms in hotels in a way that supports finding a hotel with vacancies.A database management system (DBMS) is a computer software application that interacts with the user, other applications, and the database itself to capture and analyze data. A general-purpose DBMS is designed to allow the definition, creation, querying, update, and administration of databases. Well-known DBMSs include MySQL, PostgreSQL, Microsoft SQL Server, Oracle, Sybase and IBM DB2. A database is not generally portable across different DBMSs, but different DBMS can interoperate by using standards such as SQL and ODBC or JDBC to allow a single application to work with more than one DBMS. Database management systems are often classified according to the database model that they support; the most popular database systems since the 1980s have all supported the relational model as represented by the SQL language. Sometimes a DBMS is loosely referred to as a 'database'.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report