Journal of the ACM (JACM)
Update semantics of relational views
ACM Transactions on Database Systems (TODS)
On the correct translation of update operations on relational views
ACM Transactions on Database Systems (TODS)
PODS '85 Proceedings of the fourth ACM SIGACT-SIGMOD symposium on Principles of database systems
Tracing the lineage of view data in a warehousing environment
ACM Transactions on Database Systems (TODS)
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
SilkRoute: A framework for publishing relational data in XML
ACM Transactions on Database Systems (TODS)
Why and Where: A Characterization of Data Provenance
ICDT '01 Proceedings of the 8th International Conference on Database Theory
Proceedings of the 17th International Conference on Data Engineering
Choosing a View Update Translator by Dialog at View Definition Time
VLDB '86 Proceedings of the 12th International Conference on Very Large Data Bases
XPERANTO: Middleware for Publishing Object-Relational Data as XML Documents
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
ER '02 Proceedings of the 21st International Conference on Conceptual Modeling
A Theory for Entity-Relationship View Updates
ER '92 Proceedings of the 11th International Conference on the Entity-Relationship Approach: Entity-Relationship Approach
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Oracle8i"The XML Enabled Data Management System
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Data & Knowledge Engineering - Special issue: ER 2004
From XML view updates to relational view updates: old solutions to a new problem
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
XML: some papers in a haystack
ACM SIGMOD Record
Implementation of updateable object views in the ODRA OODBMS
OTM'11 Proceedings of the 2011th Confederated international conference on On the move to meaningful internet systems - Volume Part II
| Hi-index | 0.01 |
View updating is a long standing difficult problem. Given a view defined over base data sources and a view update, there are several different updates over the base data sources, called translations, that perform the update. A translation is said to be correct if it performs the update and at the same time does not update any portion of the view not specified in the update (no view side-effects). The view update problem finds a correct translation for a given view update if one exists. In the relational scenario, previous research has attempted to study the view update problem either by utilizing only the schema knowledge, or by directly examining the base data. While utilizing only the schema knowledge is very efficient, we are not guaranteed to find a correct translation even if one exists. On the other hand, examining the base data is guaranteed to find a correct translation if one exists, but is very time-consuming. The view update problem is even more complex in the XML context due to the nested hierarchical structure of XML and the restructuring capabilities of the XQUERY view specification. In this paper we propose a schema-centric framework, named HUX, for efficiently updating XML views specified over relational databases. HUX is complete (always finds a correct translation if one exists) and is efficient. The efficiency of HUX is achieved as follows. Given a view update, HUX first exploits the schema to determine whether there will never be a correct translation, or there will always be a correct translation. Only if the update cannot be classified using the schema, HUX will examine the base data to determine if there is a correct translation. This data-level checking is further optimized in HUX, by exploiting the schema knowledge extracted in the first step to significantly prune the space of potential translations that is explored. Experiments illustrate the performance benefits of HUX over previous solutions.