3319 search results - page 390 / 664 » Type Theoretical Databases |
204
Voted
VLDB
2007
ACM
16 years 4 months ago
2007
ACM
A "plan diagram" is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. We have shown recently tha...
237
Voted
SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
Research has investigated mappings among data sources under two perspectives. On one side, there are studies of practical tools for schema mapping generation; these focus on algor...
222
Voted
SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
154
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SIGMOD
2003
ACM
16 years 4 months ago
2003
ACM
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...
152
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ITICSE
2004
ACM
15 years 9 months ago
2004
ACM
SQL (Structured Query Language) is one of the essential topics in foundation databases courses in higher education. Due to its apparent simple syntax, learning to use the full pow...