.________ systems are also known by "self-tuning” or "dynamic" systems.
.________ systems are also known by "self-tuning” or "dynamic" systems.
Query plans ______ can be symbolised as trees and are algebra expressions
Query plans ______ can be symbolised as trees and are algebra expressions
The eddy maintains a_______ queue of all tuples that require processing
The eddy maintains a_______ queue of all tuples that require processing
_________is a sharednothing parallel query processing framework. It adjusts dynamically to any fluctuations in workload and performance.
_________is a sharednothing parallel query processing framework. It adjusts dynamically to any fluctuations in workload and performance.
A fixed-sized buffer of tuples that is to be processed by one or more operators is maintained by an eddy __________.
A fixed-sized buffer of tuples that is to be processed by one or more operators is maintained by an eddy __________.
We can merge the execution as well as an optimisation phase of query processing by combining eddies with suitable _______ algorithms.
We can merge the execution as well as an optimisation phase of query processing by combining eddies with suitable _______ algorithms.
query processing process known as ___________
query processing process known as ___________
Adaptive query processing has been utilised to detect and correct ______ errors due to wrong statistics or simplified cost metrics.
Adaptive query processing has been utilised to detect and correct ______ errors due to wrong statistics or simplified cost metrics.
Hash table overflow occurs if the data in hash table is ________than main memory
Hash table overflow occurs if the data in hash table is ________than main memory
River is essentially ________threaded
River is essentially ________threaded
A _______ can be used to robustly produce near-record performance on I/O intensive benchmarks such as hash joins and parallel sorting
A _______ can be used to robustly produce near-record performance on I/O intensive benchmarks such as hash joins and parallel sorting
Merging techniques are used by all sorting in ______ database systems
Merging techniques are used by all sorting in ______ database systems
_______ are frequent in the busty performance of servers and networks in wide-area environments
_______ are frequent in the busty performance of servers and networks in wide-area environments
The feedback required in an adaptive system is solution to its _______
The feedback required in an adaptive system is solution to its _______
The purpose of the addition of an eddy is to control various ______ in a query
The purpose of the addition of an eddy is to control various ______ in a query
In the hash ripple diagram,the arrival rate of one relation is _______ times faster than the other
In the hash ripple diagram,the arrival rate of one relation is _______ times faster than the other
The participating operators of an eddy are encapsulated by the ________.
The participating operators of an eddy are encapsulated by the ________.
The query processing system is said to be adaptive if it has _____features.
The query processing system is said to be adaptive if it has _____features.
_____ utilises intervals over query cost estimates,rather than specifying the estimates for single.
_____ utilises intervals over query cost estimates,rather than specifying the estimates for single.
Adaptive data query and processing is essentially used by data grids to offer better _________to users and applications in spite of dynamically changing resources and environments
Adaptive data query and processing is essentially used by data grids to offer better _________to users and applications in spite of dynamically changing resources and environments