35 search results - page 1 / 7 » WOL: A Language for Database Transformations and Constraints |
ICDE
1997
IEEE
14 years 6 months ago
1997
IEEE
The need to transform data between heterogeneous databases arises from a number of critical tasks in data management. These tasks are complicated by schema evolution in the underl...
DEBU
1999
13 years 4 months ago
1999
WOL is a Horn-clause language for specifying transformations involving complex types and recursive data-structures. Its declarative syntax makes programs easy to modify in respons...
SDB
1995
13 years 8 months ago
1995
Database transformations arise in many di erent settings including database integration, evolution of database systems, and implementing user views and data-entry tools. This paper...
CIKM
1994
Springer
13 years 9 months ago
1994
Springer
Human Genome Project databases present a confluence of interesting database challenges: rapid schema and data evolution, complex data entry and constraint management, and the need...
DOCENG
2009
ACM
13 years 11 months ago
2009
ACM
We study the analysis problem of XPath expressions with counting constraints. Such expressions are commonly used in document transformations or programs in which they select porti...