Modeling the CODASYL DML context dependency for database program conversion
The CODASYL database (db) statements in an application program can have one or more different semantics associated with it, depending on the path through which the execution reaches that statement. This makes the CODASYL operations in a db program context dependent. The previous works on the db prog...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
1986
|
Subjects: | |
Online Access: | http://hdl.handle.net/2318/115109 http://www.sciencedirect.com/science/article/pii/0306437986900244 |
id |
ftunivtorino:oai:iris.unito.it:2318/115109 |
---|---|
record_format |
openpolar |
spelling |
ftunivtorino:oai:iris.unito.it:2318/115109 2023-08-27T04:09:10+02:00 Modeling the CODASYL DML context dependency for database program conversion DEMO, Giuseppina S. Kundu G. B. Demo S. Kundu 1986 http://hdl.handle.net/2318/115109 http://www.sciencedirect.com/science/article/pii/0306437986900244 eng eng volume:11 firstpage:87 lastpage:100 journal:INFORMATION SYSTEMS http://hdl.handle.net/2318/115109 http://www.sciencedirect.com/science/article/pii/0306437986900244 info:eu-repo/semantics/article 1986 ftunivtorino 2023-08-08T22:29:03Z The CODASYL database (db) statements in an application program can have one or more different semantics associated with it, depending on the path through which the execution reaches that statement. This makes the CODASYL operations in a db program context dependent. The previous works on the db program conversion from the CODASYL record-at-a-time interface to the set-at-a-time interface of the relational model consider a limited class of programs where each db statement in the program is assumed to have a unique semantic interpretation. In this paper, we define a framework for analyzing the multiple semantics of the CODASYL operations and their context dependencies. We then show how the analysis can be used for converting a CODASYL db program which contains statements having ambiguous, multiply-defined semantics. The method described here allows us to convert any CODASYL db program. Article in Journal/Newspaper DML Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
institution |
Open Polar |
collection |
Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
op_collection_id |
ftunivtorino |
language |
English |
description |
The CODASYL database (db) statements in an application program can have one or more different semantics associated with it, depending on the path through which the execution reaches that statement. This makes the CODASYL operations in a db program context dependent. The previous works on the db program conversion from the CODASYL record-at-a-time interface to the set-at-a-time interface of the relational model consider a limited class of programs where each db statement in the program is assumed to have a unique semantic interpretation. In this paper, we define a framework for analyzing the multiple semantics of the CODASYL operations and their context dependencies. We then show how the analysis can be used for converting a CODASYL db program which contains statements having ambiguous, multiply-defined semantics. The method described here allows us to convert any CODASYL db program. |
author2 |
G. B. Demo S. Kundu |
format |
Article in Journal/Newspaper |
author |
DEMO, Giuseppina S. Kundu |
spellingShingle |
DEMO, Giuseppina S. Kundu Modeling the CODASYL DML context dependency for database program conversion |
author_facet |
DEMO, Giuseppina S. Kundu |
author_sort |
DEMO, Giuseppina |
title |
Modeling the CODASYL DML context dependency for database program conversion |
title_short |
Modeling the CODASYL DML context dependency for database program conversion |
title_full |
Modeling the CODASYL DML context dependency for database program conversion |
title_fullStr |
Modeling the CODASYL DML context dependency for database program conversion |
title_full_unstemmed |
Modeling the CODASYL DML context dependency for database program conversion |
title_sort |
modeling the codasyl dml context dependency for database program conversion |
publishDate |
1986 |
url |
http://hdl.handle.net/2318/115109 http://www.sciencedirect.com/science/article/pii/0306437986900244 |
genre |
DML |
genre_facet |
DML |
op_relation |
volume:11 firstpage:87 lastpage:100 journal:INFORMATION SYSTEMS http://hdl.handle.net/2318/115109 http://www.sciencedirect.com/science/article/pii/0306437986900244 |
_version_ |
1775350310020055040 |