A new normal form for nested relations
ACM Transactions on Database Systems (TODS)
Restructuring hierarchical database objects
Theoretical Computer Science - First International Conference on Database Theory, Rome, September 1986
The structure of the relational database model
The structure of the relational database model
A normal form for precisely characterizing redundancy in nested relations
ACM Transactions on Database Systems (TODS)
A query language and optimization techniques for unstructured data
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Your mediators need data conversion!
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
The XML handbook
Storing semistructured data with STORED
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
WWW '99 Proceedings of the eighth international conference on World Wide Web
Data on the Web: from relations to semistructured data and XML
Data on the Web: from relations to semistructured data and XML
Proceedings of the 10th international conference on World Wide Web
On XML integrity constraints in the presence of DTDs
PODS '01 Proceedings of the twentieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
A normal form for XML documents
Proceedings of the twenty-first ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Foundations of Databases: The Logical Level
Foundations of Databases: The Logical Level
Adding Structure to Unstructured Data
ICDT '97 Proceedings of the 6th International Conference on Database Theory
Relational Databases for Querying XML Documents: Limitations and Opportunities
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
Efficient Relational Storage and Retrieval of XML Documents
Selected papers from the Third International Workshop WebDB 2000 on The World Wide Web and Databases
A normal form for XML documents
ACM Transactions on Database Systems (TODS)
Normalisation in the presence of lists
ADC '04 Proceedings of the 15th Australasian database conference - Volume 27
Strong functional dependencies and their application to normal forms in XML
ACM Transactions on Database Systems (TODS)
Functional dependencies over XML documents with DTDs
Acta Cybernetica
Multivalued dependencies and a 4NF for XML
CAiSE'03 Proceedings of the 15th international conference on Advanced information systems engineering
Multivalued dependencies in XML
BNCOD'03 Proceedings of the 20th British national conference on Databases
Functional dependencies for XML
APWeb'03 Proceedings of the 5th Asia-Pacific web conference on Web technologies and applications
Design non-recursive and redundant-free XML conceptual schema with hypergraph
DASFAA'11 Proceedings of the 16th international conference on Database systems for advanced applications
A comparative analysis of managing XML data in relational database
ACIIDS'11 Proceedings of the Third international conference on Intelligent information and database systems - Volume Part I
Characterization of the interaction of XML functional dependencies with DTDs
ICDT'07 Proceedings of the 11th international conference on Database Theory
Finding faithful boyce-codd normal form decompositions
AAIM'06 Proceedings of the Second international conference on Algorithmic Aspects in Information and Management
The implication problem for 'closest node' functional dependencies in complete XML documents
Journal of Computer and System Sciences
Conceptual Modelling and Its Theoretical Foundations
Formal Framework of XML Document Schema Design
International Journal of Information Retrieval Research
Hi-index | 0.00 |
With the advent of XML and its use as a database language, dependency and normal form theory has attracted novel research interest. Several approaches to build up a dependency and normal form theory for XML databases have been published, mainly concentrating on functional dependencies and keys. XML-like database structures can be modelled by rational trees using constructors for lists and disjoint unions. This involves restructuring rules on subattributes. The absence of redundancy can be characterised by the nested list normal form. If ordering is ignored, constructors for sets or multisets have to be employed. For these the theory can be extended using counter-free functional dependencies. Finally, for keys an important research question is which systems of subattributes permit Armstrong instances. While this gives just a glimpse of a starting promising theory, a research agenda for further research will be set up.