104 search results - page 1 / 21 » Reformulation of XML Queries and Constraints |
114
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ICDT
2003
ACM
15 years 6 months ago
2003
ACM
We state and solve the query reformulation problem for XML publishing in a general setting that allows mixed (XML and relational) storage for the proprietary data and exploits redu...
127
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SIGMOD
2004
ACM
16 years 1 months ago
2004
ACM
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
103
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BXML
2004
15 years 2 months ago
2004
: Whenever transformation of data is used to bridge the gap of different data formats, and a query is given in the destination format, query reformulation can speed up the transfor...
128
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VLDB
2004
ACM
15 years 6 months ago
2004
ACM
Query containment is the most fundamental relationship between a pair of database queries: a query Q is said to be contained in a query Q if the answer for Q is always a subset of...