Results 271 to 280 of about 124,288 (293)

Database Schema Migrations

2018
Entity Framework Core contains tools to create a database from an object model at the time of development or runtime of the application and to change the schema of an existing database (in simple cases without data loss).
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Towards converting a production database schema to XML schema

International Journal of Computer Aided Engineering and Technology, 2009
Widespread usage of computers in large companies led to the development of different application specific databases at geographically different locations. Heterogeneous applications need to communicate and exchange data. It is vital to for engineering enterprises to have interoperability.
R. Senthil Kumar, R. PriyaVaijayanthi, K. Prakasan   +2 more
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Feature-Based Adaptation of Database Schemas

2013
A recognized quality of a modern software system is its ability to adapt to changing user needs, user tasks, user skills and context of operation. While recent research results have been achieved in the domain of architectures, requirements and user interfaces, very little attention has been devoted to the adaptation of the data manipulation aspects of
Mori, Marco, Cleve, Anthony
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ESM: An Extended Schema Matching Method between Database Schemas

2010 International Conference on E-Business and E-Government, 2010
Schema matching is a basic problem in many application fields as fundamental operation of schema. This paper analyses the advantages and limitations of iMAP and CM, and proposes an extended schema matching system architecture between Database Schemas (ESM). First, ESM filters unreasonable matches by preprocess and clustering process.
Zhang Dongming, Liu Guohua
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Formal semantics for database schemas

Information Systems, 1989
\textit{P. Atzeni} and \textit{D. S. Parker} [Formal properties of net-based knowledge representation schemes. Proc. 2nd IEEE Conf. Data Engineering, 700-706 (1986)] formulated a system of axioms for the concept of a database schema, based on the ``is-a'' and the disjointness relationships between types. This paper investigates the algebraic properties
Simovici, Dan A., Stefanescu, Dan C.
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Design of relational database schemas

Information and Software Technology, 1988
Abstract The development of an optimal database schema for an enterprise and the subsequent selection of a suitable set of database relations, represent a major problem during the logical design of a relational database which has not been adequately tackled so far.
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Customizing the Database Schema

2018
In many cases, Entity Framework Core can create a database schema in forward engineering based solely on conventions from an object model. However, the previous chapter has already shown that conventions are not always enough to create a valid database schema. Tutoring for the software developer was necessary to create composite primary keys, to create
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Renormalization of NoSQL Database Schemas

2018
NoSQL applications often use denormalized databases in order to meet performance goals, but this introduces complications as the database itself has no understanding of application-level denormalization. In this paper, we describe a procedure for reconstructing a normalized conceptual model from a denormalized NoSQL database.
Michael J. Mior, Kenneth Salem
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Database schema transformation and optimization

1995
An application structure is best modeled first as a conceptual schema, and then mapped to an internal schema for the target DBMS. Different but equivalent conceptual schemas often map to different internal schemas, so performance may be improved by applying conceptual transformations prior to the standard mapping.
T. A. Halpin, H. A. Proper
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Object Oriented Database Schema Design

2001
To provide a rich variety of modeling constructs, which can model most of the situations that may arise in advance database application domains, there is a need of systematic integration of analysis design methods. To take the goodies of famous methods integrating OMT, Booch, Ivar Jacobson & Shlaer Mellor is a challenging universal truth of ...
B. B. Meshram, T. R. Sontakke
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