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» Efficient Processing of Nested Fuzzy SQL Queries
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WWW
2009
ACM
14 years 8 months ago
Efficient interactive fuzzy keyword search
Traditional information systems return answers after a user submits a complete query. Users often feel "left in the dark" when they have limited knowledge about the unde...
Shengyue Ji, Guoliang Li, Chen Li, Jianhua Feng
SIGMOD
2006
ACM
159views Database» more  SIGMOD 2006»
14 years 7 months ago
Flexible and efficient XML search with complex full-text predicates
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...
Sihem Amer-Yahia, Emiran Curtmola, Alin Deutsch
COMAD
2008
13 years 9 months ago
Native Multidimensional Indexing in Relational Databases
In existing database systems there is a strong need for searching data according to many attributes. In commercial database platforms, the standard search over multiple attributes...
David Hoksza, Tomás Skopal
VLDB
2002
ACM
143views Database» more  VLDB 2002»
13 years 7 months ago
SQL Memory Management in Oracle9i
Complex database queries require the use of memory-intensive operators like sort and hashjoin. Those operators need memory, also referred to as SQL memory, to process their input ...
Benoît Dageville, Mohamed Zaït
ICDE
2006
IEEE
185views Database» more  ICDE 2006»
14 years 1 months ago
Don't be a Pessimist: Use Snapshot based Concurrency Control for XML
Currently, only few XML data management systems support concurrent access to an XML document, and if they do, they typically apply variations of hierarchical locking to handle XML...
Zeeshan Sardar, Bettina Kemme