620 search results - page 27 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
133
Voted
PODS
2002
ACM
16 years 2 months ago
2002
ACM
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
206
Voted
ICDE
2005
IEEE
16 years 4 months ago
2005
IEEE
The SQL queries produced in XML-to-SQL query translation are often unnecessarily complex, even for simple input XML queries. In this paper we argue that relational systems can do ...
134
Voted
DATESO
2007
15 years 4 months ago
2007
Boyer-Moore-Horspool (BMH) algorithm is commonly used to solve text searching problems. In this paper is used to solve the constraint subset of XPath queries offering effective alg...
95
Voted
WWW
2002
ACM
16 years 3 months ago
2002
ACM
We present an algorithm for translating XSLT programs into SQL. Our context is that of virtual XML publishing, in which a single XML view is defined from a relational database, an...
132
Voted
SIGMOD
1999
ACM
15 years 7 months ago
1999
ACM
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...