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SIGMOD
2001
ACM
146views Database» more  SIGMOD 2001»
15 years 10 months ago
On Supporting Containment Queries in Relational Database Management Systems
Virtually all proposals for querying XML include a class of query we term "containment queries". It is also clear that in the foreseeable future, a substantial amount of...
Chun Zhang, Jeffrey F. Naughton, David J. DeWitt, ...
JAPLL
2010
98views more  JAPLL 2010»
14 years 8 months ago
On database query languages for K-relations
The relational model has recently been extended to so-called K-relations in which tuples are assigned a unique value in a semiring K. A query language, denoted by RAC K , similar ...
Floris Geerts, Antonella Poggi
SIGMOD
2003
ACM
174views Database» more  SIGMOD 2003»
15 years 10 months ago
ViST: A Dynamic Index Method for Querying XML Data by Tree Structures
With the growing importance of XML in data exchange, much research has been done in providing flexible query facilities to extract data from structured XML documents. In this pape...
Haixun Wang, Sanghyun Park, Wei Fan, Philip S. Yu
BTW
2003
Springer
170views Database» more  BTW 2003»
15 years 3 months ago
Executing Nested Queries
Abstract: Optimization of nested queries, in particular finding equivalent “flattened” queries for queries that employ the SQL sub-query construct, has been researched extensiv...
Goetz Graefe
WIRTSCHAFTSINFORMATI
2007
14 years 11 months ago
Integration of Conceptual Process Models by the Example of Event-driven Process Chains
It has become common place in business life that companies with related operations engage in a so-called merger in order to benefit from synergies or from combined products and se...
Carlo Simon, Jan Mendling