Abstract
We describe a network schema design algorithm that uses a well-designed relational schema as input. The resulting network database handles incomplete information, since we use only the modified foreign-key constraint and not the universal instance assumption. We believe that the representative instance is a correct representation of information stored in the database. We show how to map the representative instance to the network database. We give two algorithms for translating a relational query to a network application program. The first algorithm is confined to relational queries that express selections and projections over the universal relation scheme. The second algorithm includes all relational queries over select, project and (natural) join. Optimization techniques are discussed for both types of translation.
Original language | English |
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Title of host publication | Proceedings of the 1st ACM SIGACT-SIGMOD Symposium on Principles of Database Systems, PODS 1982 |
Publisher | Association for Computing Machinery |
Pages | 147-157 |
Number of pages | 11 |
ISBN (Print) | 0897910702 |
DOIs | |
State | Published - 29 Mar 1982 |
Externally published | Yes |
Event | 1st ACM SIGACT-SIGMOD Symposium on Principles of Database Systems, PODS 1982 - Los Angeles, United States Duration: 29 Mar 1982 → 31 Mar 1982 |
Publication series
Name | Proceedings of the ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems |
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Conference
Conference | 1st ACM SIGACT-SIGMOD Symposium on Principles of Database Systems, PODS 1982 |
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Country/Territory | United States |
City | Los Angeles |
Period | 29/03/82 → 31/03/82 |
Bibliographical note
Publisher Copyright:© 1982 ACM.