rrelational database modelsecuritycovert channelop-crating systemMechanisms called set-UID and set-GID are used to control access privileges for users on UNIX systems. When a program is running it will gen-erally execute with the same rights as the user who executed. When the set-UID or set...
Using relational model for representing information source results in scattered relations ofdata about the real world objects. In this paper an effective category model is presented to organize information according to their contents based on object-relational database. For the discussion of the ...
• The Relational Model with Relation-valued Attributes • Information Systems, 11, 2, 137–147, 1986 Ullman,J.D. • Principles of Database Systems • London 1983, 2nd Edition About this Chapter Title A data model for complex objects based on a semantic database model and nested...
How to make relational database has the semantic character, and how to describe the semantic of object, are important problem during the application of semantic web. In this paper, a model of Ontology-Object-Relational mapping rules and algorithms was al
Nowadays, indexing data by ontological concepts represents a new approach for modeling and exploiting databases. These emergent architectures are called Ontology-Based DataBases (OBDB). In such systems, both the ontology (local ontology) and the related
building and publishing.By an alyzing one of the technologies SQml which get structured markup language and da tabase connected,we discuss the defects of applying structured markup language i nto RDBMS.We define the database system based on the structured markup language and design a model for ...
FCN-GRU-TPA modelSap flow is one of the important physiological parameters of moso bamboo, reflecting the plant's utilization of water and its response to the environment. To explore the impact of environmental factors on moso bamboo sap flow and the relationship between sap flow density and ...
The model-based approach uses an architectural abstraction called managed component Data Flow Graph (mcDFG). The mcDFG is aware of the interactions between all layers of the architecture and guides the generation of tests based on different mcDFG coverage criteria to identify faults in the ...
In practice you’d probably want to record the interest in a key-value store rather than in a relational database, so we’ve left that bit out. The only bit of the view that needs to worry about usingSingleObjectMixinis where we want to look up the author we’re interested in, which...
We recall the principle of "logical separation" from relational databases, which helps to insulate relational database design and query langauges such as SQL from the physical storage of data on disk. By analogy, we believe that a shared ledger BCL can be designed based on abstractions suitable...