306 search results - page 27 / 62 » Spark: top-k keyword query in relational databases |
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
We propose to demonstrate EaseDB, the first cache-oblivious query processor for in-memory relational query processing. The cacheoblivious notion from the theory community refers t...
WEBDB
2005
Springer
14 years 26 days ago
2005
Springer
In the relational model it has been shown that the flat relational algebra has the same expressive power as the nested relational algebra, as far as queries over flat relations ...
SIGMOD
2010
ACM
14 years 6 days ago
2010
ACM
Current relational databases require that a database schema exist prior to data entry and require manual optimization for best performance. We describe the query optimization tech...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
Recently, there has been extensive research that generated a wealth of new XML full-text query languages, ranging from simple Boolean search to combining sophisticated proximity a...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
This paper describes query processing in the DBO database system. Like other database systems designed for ad-hoc, analytic processing, DBO is able to compute the exact answer to ...