Results 251 to 260 of about 4,398,359 (269)
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Database Schemes and Databases
1991We attempt a more rigorous definition of the relational database model based on /THAL 88/ as it was originally introduced by E.F. Codd /CODD 70/ using the theory of abstract data types /REI 84/ and especially the approach of /PDGG 88/, /VOSS 87/ and /DEAB 85/.
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Transactions of the Philological Society, 2013
AbstractThis article describes the aims, methodology and contents of the Eighteenth‐Century English Grammars database online (ECEG). Starting with the definition of the term ‘English grammar’ in ECEG, which frames and sets the limits of what has been included in and excluded from the database, we then offer a detailed discussion of its design ...
Yanez Bouza, Nuria +1 more
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AbstractThis article describes the aims, methodology and contents of the Eighteenth‐Century English Grammars database online (ECEG). Starting with the definition of the term ‘English grammar’ in ECEG, which frames and sets the limits of what has been included in and excluded from the database, we then offer a detailed discussion of its design ...
Yanez Bouza, Nuria +1 more
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Journal of the ACM, 1983
An algebraic foundation of database schema design is presented. A new database operator, namely, disaggregation, is introduced. Beginning with “free” families, repeated applications of disaggregation and three other operators (matching function, Cartesian product, and selection) yield families of increasingly elaborate structure.
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An algebraic foundation of database schema design is presented. A new database operator, namely, disaggregation, is introduced. Beginning with “free” families, repeated applications of disaggregation and three other operators (matching function, Cartesian product, and selection) yield families of increasingly elaborate structure.
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Databases and the Web: What's in it for Databases?
Proceedings 13th International Conference on Data Engineering, 2005Database technology and the Web, as they exist today, have obviously many relationships. However, the opinions about these relationships vary widely and accordingly database technology plays many roles in the World Wide Web (WWW). The spectrum ranges from viewing the Web as one huge database for which data management problems need to be tackled to ...
Erich J. Neuhold, Karl Aberer
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Mediating the views of databases and database users
ACM SIGART Bulletin, 1980The Natural-Language/Deduction group at SRI International has undertaken several large projects integrating knowledge representation, the modeling and use of distributed conventional databases, logical deduction, and natural-language processing. One of the largest projects, LADDER [2], involved accessing data distributed over a computer network by ...
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2022
Sagsstyringsværktøj med henblik på at registrere ansøgninger, bevillinger og danne skabelon for korrespondance som f.eks afslag, ønske om supplerende materiale og bevillingstilsagn. Desuden en omfattende interessentdatabase som udover ansøgere indeholder alle, der har være i brevkontakt med Filmværkstedet fra ind- og udland samt andre branchekontakter,
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Sagsstyringsværktøj med henblik på at registrere ansøgninger, bevillinger og danne skabelon for korrespondance som f.eks afslag, ønske om supplerende materiale og bevillingstilsagn. Desuden en omfattende interessentdatabase som udover ansøgere indeholder alle, der har være i brevkontakt med Filmværkstedet fra ind- og udland samt andre branchekontakter,
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Database and Database Management System
2009In this set of examples, we will try to set out the criteria which an inventor should bear in mind when attempting to decide on the appropriate type of protection to apply for when his invention relates to a database. We will first define what a database and a database management system are and then the different possibilities to get intellectual ...
Jörg Machek +3 more
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The ecoinvent database version 3 (part I): overview and methodology
The International Journal of Life Cycle Assessment, 2016Gregor Wernet +5 more
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Database Security and Statistical Database Security
2009In this article we will present an introduction to issues relevant to database security and statistical database security. We will briefly cover various security models, elaborate on how data analysis in data warehouses (DWH) might compromise an individual’s privacy, and explain which safeguards can be used to prevent attacks.
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