Name
Abstract | ||
|---|---|---|
A schema algebra comprises operations on database schemata for a given data model. Such algebras are useful in database design as well as in schema integration. In this article we address the necessary theoretical underpinnings by introducing a novel notion of conceptual schema morphism that captures at the same time the conceptual schema and its semantics by means of the set of valid instances. This leads to a category of schemata that is finitely complete and co-complete. This is the basis for a notion of completeness of schema algebras, if it captures all universal constructions in the category of schemata. We exemplify this notion of completeness for a recently introduced particular schema algebra. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.3233/FI-2013-834 | Fundam. Inform. |
Keywords | Field | DocType |
particular schema algebra,conceptual schema,complete conceptual schema algebras,novel notion,conceptual schema morphism,necessary theoretical underpinnings,database schema,schema integration,data model,schema algebra,database design,completeness | Superkey,Discrete mathematics,Conceptual schema,Star schema,Document Structure Description,Database schema,Schema (psychology),Data model,Mathematics,Morphism | Journal |
Volume | Issue | ISSN |
124 | 3 | 0169-2968 |
Citations | PageRank | References |
0 | 0.34 | 16 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hui Ma | 1 | 74 | 6.00 |
| René Noack | 2 | 17 | 4.32 |
| Klaus-dieter Schewe | 3 | 1367 | 202.78 |
| Bernhard Thalheim | 4 | 1811 | 442.28 |
| Qing Wang | 5 | 109 | 23.65 |