253 search results - page 23 / 51 » A Query Language for EER Schemas |
189
Voted
EDBT
2008
ACM
16 years 3 months ago
2008
ACM
Data exchange is the problem of transforming data structured under a schema (called source) into data structured under a different schema (called target). The emphasis of data exc...
121
Voted
ER
2007
Springer
15 years 9 months ago
2007
Springer
Today, there are several approaches supporting an integrated processing of XML and (object-)relational data sources. However, each of these approaches favors a single data model f...
134
Voted
FMLDO
1990
Springer
15 years 7 months ago
1990
Springer
Object-oriented database systems (ooDBMSs) are supposed to offer at least the functionality available in commercial relational DBMSs of today. One important consequence of this is...
130
Voted
DOOD
1995
Springer
15 years 7 months ago
1995
Springer
Abstract. Semistructured data has no absolute schema xed in advance and its structure may be irregular or incomplete. Such data commonly arises in sources that do not impose a rigi...
130
Voted
ICDT
2010
ACM
16 years 25 days ago
2010
ACM
It is known that the composition of schema mappings, each specified by source-to-target tgds (st-tgds), can be specified by a secondorder tgd (SO tgd). We consider the question of...