190 search results - page 2 / 38 » Discovering XML keys and foreign keys in queries |
ER
2007
Springer
13 years 11 months ago
2007
Springer
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
ADC
2003
Springer
13 years 10 months ago
2003
Springer
Much work on XML data was around storage and querying and did not consider constraints of XML, especially keys. Since constraints have been proposed in many papers for XML, much r...
SSDBM
2008
IEEE
13 years 11 months ago
2008
IEEE
Random sampling is a popular technique for providing fast approximate query answers, especially in data warehouse environments. Compared to other types of synopses, random sampling...
AMW
2010
13 years 6 months ago
2010
We consider incomplete specifications of XML documents in the presence of schema information and integrity constraints. We show that integrity constraints such as keys and foreign ...
SIAMCOMP
2008
13 years 4 months ago
2008
XML specifications often consist of a type definition (typically, a DTD) and a set of integrity constraints. It has been shown previously that such specifications can be inconsiste...