Providing views and closure for the object data management group object model

Roantree, Mark; Kennedy, Jessie; Barclay, Peter J.

doi:10.1016/s0950-5849(99)00042-7

Cited by 7 publications

(15 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Derived classes are defined using the mechanisms proposed in [Roantree99,Garcia02] because ODMG does not address the definition of derived classes. (In fact, ODMG proposes the use of named queries, which do not offer the expected functionalities).…”

Section: Overview Of Our External Schema Definition Methodology For Omentioning

confidence: 99%

“…Many proposals have been defined for such a purpose: virtual classes [Abiteboul91,Rundensteiner92,Santos95], view classes [Bertino92,Guerrini97], and so on. However, to the best of our knowledge, only two proposals [Garcia02,Roantree99] have been defined in the ODMG framework because ODMG only has proposed the definition of named queries for that purpose. In our methodology, derived classes are defined using the mechanisms proposed in [Garcia02,Roantree99].…”

Section: Introductionmentioning

confidence: 99%

“…However, to the best of our knowledge, only two proposals [Garcia02,Roantree99] have been defined in the ODMG framework because ODMG only has proposed the definition of named queries for that purpose. In our methodology, derived classes are defined using the mechanisms proposed in [Garcia02,Roantree99].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Language to Define External Schemas in ODMG Databases.

Torres¹,

Samos²

2004

JOT

View full text Add to dashboard Cite

ODMG is the de facto standard for object-oriented databases (OODB) but does not address the definition of external schemas. In order to provide such functionality, we have developed an external schema definition methodology that allows the definition of external schemas in ODMG databases. In this work, the language used by the schema definer to specify the schema components (e.g. classes, interfaces, and so on) is proposed. Besides, we describe the effect caused on the ODMG schema repository by the definition of external schemas using the proposed language.

show abstract

Section: Overview Of Our External Schema Definition Methodology For Omentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Language to Define External Schemas in ODMG Databases.

Torres¹,

Samos²

2004

JOT

View full text Add to dashboard Cite

show abstract

“…may-be, ISVIEW and so on) between classes in object schemas. Other works developed in this ODMG context propose some extensions to define views [22] and the use of the ODMG object model in federated databases [23,24].…”

Section: Introductionmentioning

confidence: 99%

“…The semantic richness of the objectoriented model and the development of the ODMG object model as a potential standard make this model a candidate to be considered as the canonical model for the federated schema. However, some extension must be carried out on the object model to overcome its deficiencies, specifically in terms of those issues related to defining views, as is proposed in [22,24] and in the work we are carrying out.…”

Section: Introductionmentioning

confidence: 99%

A Methodology to Define External Schemas in ODMG Databases

Torres

Samos

2005

The Computer Journal

View full text Add to dashboard Cite

The ODMG standard is a proposal to solve one of the main drawbacks of object-oriented databases (OODBs): the lack of a standard for object definition and management. Nevertheless, this standard does not offer a solution for another lack of OODBs, related to the definition of external schemas. In this work, a methodology to define external schemas in ODMG databases is put forward. This methodology proposes a solution for the tasks involved-specification, closure and generation of external schemas-introducing also an extension of ODMG metadata to enable the definition of external schemas in ODMG databases.

show abstract