2546 search results - page 290 / 510 » Managing long-running queries |
178
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CIDR
2003
15 years 8 months ago
2003
It has frequently been observed that most of the world’s data lies outside database systems. The reason is that database systems focus on structured data, leaving the unstructur...
269
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GIS
2007
ACM
16 years 7 months ago
2007
ACM
Accurate and efficient integration of geospatial data is an important problem with applications in areas such as emergency response and urban planning. Some of the key challenges ...
297
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GIS
2004
ACM
16 years 7 months ago
2004
ACM
Sensor networks are unattended deeply distributed systems whose schema can be conceptualized using the relational model. Aggregation queries on the data sampled at each ode are th...
273
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
SQL tuning--the attempt to improve a poorly-performing execution plan produced by the database query optimizer-is a critical aspect of database performance tuning. Ironically, as ...
186
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DMSN
2004
ACM
16 years 1 days ago
2004
ACM
Recent years have witnessed a rapidly growing interest in query processing in sensor and actuator networks. This is mainly due to the increased awareness of query processing as th...