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Lab For LU05 – SQL Programming Views, Stored Procedures
Lab For LU05 – SQL Programming Views, Stored Procedures

... difference between the logical model and the internal model is the latter is actually implemented in a DBMS. Notice, that although not represented in the diagram, the check constraints, unique constraints, and default values all have all been implemented in the database schema just like they were in ...
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... • The life science domain has to face a new era in which the integration of information is an important issue • This paper presents a tool that has two main pillars: an ontology-based mediator (KOMF) and a persistent reasoner (DBOWL). – The use of KOMF enables the retrieval of information useful for ...
On Designing a Database for Integrated User Management: Pitfalls and Possibilities
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... such as which employees have access rights on a specific system. Employees may also have different user account names on different systems. Organizations have often chosen not to deal with this problem, as they understand it to be vicious cycle. If the organization could track all of its IT users a ...
KK-IRCS-2001 - Stanford NLP Group
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... document object model) over which queries are made using XQL (XQL 1999), one of several proposed XML query languages. However, in practice it proved slower, and more diskspace intensive than simply using a text XML file, while only allowing a subset of the queries we wanted. In principle, we would m ...
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Object-relational impedance mismatch

The object-relational impedance mismatch is a set of conceptual and technical difficulties that are often encountered when a relational database management system (RDBMS) is being used by a program written in an object-oriented programming language or style, particularly when objects or class definitions are mapped in a straightforward way to database tables or relational schemata.The term object-relational impedance mismatch is derived from the electrical engineering term impedance matching.
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