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Journal of Visual Languages & Computing, 1991
A graphical query language is a visual language which is intended as a database interface and which employs visual metaphors in order to express the semantics of a database language. The TableTalk graphical query language assumes an objectoriented data model and is based upon the notion of a functional query language.
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A graphical query language is a visual language which is intended as a database interface and which employs visual metaphors in order to express the semantics of a database language. The TableTalk graphical query language assumes an objectoriented data model and is based upon the notion of a functional query language.
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Proceedings 2001 International Database Engineering and Applications Symposium, 2002
XML data is different from data found in relational databases in several important respects. The article discusses these differences and why they justify development of a new query language for XML. It also reports on the activities of the W3C working group on XML queries.
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XML data is different from data found in relational databases in several important respects. The article discusses these differences and why they justify development of a new query language for XML. It also reports on the activities of the W3C working group on XML queries.
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2002
Once upon a time, 64KB came in a piano crate, not on a small chip, and maintaining and manipulating data was expensive. Memory wasn’t the only problem: software was in its infancy, and simple tasks such as storing and indexing files required lots of support staff. As data grew, so did the need for better ways to maintain and manipulate that data.
Martin W. P. Reid, Susan Sales Harkins
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Once upon a time, 64KB came in a piano crate, not on a small chip, and maintaining and manipulating data was expensive. Memory wasn’t the only problem: software was in its infancy, and simple tasks such as storing and indexing files required lots of support staff. As data grew, so did the need for better ways to maintain and manipulate that data.
Martin W. P. Reid, Susan Sales Harkins
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IEEE Transactions on Knowledge and Data Engineering, 1993
We define the query language Vizla, in which answers to queries are built up by pointing to representations of sets and functions in a conceptual model of the data base of an application, and to iconic identifiers of computational operators or control constructs.
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We define the query language Vizla, in which answers to queries are built up by pointing to representations of sets and functions in a conceptual model of the data base of an application, and to iconic identifiers of computational operators or control constructs.
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2011
The social web is becoming increasingly popular and important, because it creates the collective intelligence, which can produce more value than the sum of individuals. The social web uses the Semantic Web technology RDF to describe the social data in a machine-readable way.
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The social web is becoming increasingly popular and important, because it creates the collective intelligence, which can produce more value than the sum of individuals. The social web uses the Semantic Web technology RDF to describe the social data in a machine-readable way.
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2016
Earlier in this book, we learned about repositories, containers for entities of a specific type. They are used to look up entities by specific criteria, do updates or deletes, and so on. They do their work with the help of finder methods, which are implemented using Doctrine’s own entity query language DQL, the Doctrine Query Language.
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Earlier in this book, we learned about repositories, containers for entities of a specific type. They are used to look up entities by specific criteria, do updates or deletes, and so on. They do their work with the help of finder methods, which are implemented using Doctrine’s own entity query language DQL, the Doctrine Query Language.
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2009
Any programmer knows that programsmay fall into infinite loops and never terminate. Datalog with constraint programs may have the same problem. When providing library programs for naive users, we need to guarantee that our programs terminate and give a meaningful answer each time they are called and for any possible valid database input. This guarantee
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Any programmer knows that programsmay fall into infinite loops and never terminate. Datalog with constraint programs may have the same problem. When providing library programs for naive users, we need to guarantee that our programs terminate and give a meaningful answer each time they are called and for any possible valid database input. This guarantee
openaire +2 more sources