81 search results - page 5 / 17 » Syntax and Semantics of Hybrid Database Languages |
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
XQuery is considered to become the standard query language for XML documents. However, the complete XQuery syntax and semantics seem too complicated for research and educational p...
SDB
1995
13 years 11 months ago
1995
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...
UML
2005
Springer
14 years 29 days ago
2005
Springer
This paper presents ATL (ATLAS Transformation Language): a hybrid model transformation language that allows both declarative and imperative constructs to be used in transformation ...
JOT
2010
13 years 6 months ago
2010
Abstract The integration of database and programming languages is difficult due to the different data models and type systems prevalent in each field. We present a solution wher...
ACL
1998
13 years 8 months ago
1998
A layered approach to information retrieval permits the inclusion of multiple search engines as well as multiple databases, with a natural language layer to convert English querie...