265 search results - page 9 / 53 » Logical Queries over Views: Decidability and Expressiveness |
100
click to vote
ADBIS
2000
Springer
15 years 2 months ago
2000
Springer
Queries involving aggregation are typical in a number of database research areas, such as data warehousing, global information systems and mobile computing. One of the main ideas ...
106
click to vote
CORR
2004
Springer
14 years 10 months ago
2004
Springer
Data structures often use an integer variable to keep track of the number of elements they store. An invariant of such data structure is that the value of the integer variable is ...
VLDB
2004
ACM
15 years 3 months ago
2004
ACM
XML languages, such as XQuery, XSLT and SQL/XML, employ XPath as the search and extraction language. XPath expressions often define complicated navigation, resulting in expensive...
159
click to vote
VLDB
2002
ACM
15 years 10 months ago
2002
ACM
The view selection problem is to choose a set of views to materialize over a database schema, such that the cost of evaluating a set of workload queries is minimized and such that ...
104
Voted
BNCOD
2007
14 years 11 months ago
2007
Order is essential for XML query processing. Efficient XML processing with order consideration over relational storage is non-trivial, especially for complex nested XQuery expressi...