Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2007-11-20
2007-11-20
Truong, Cam-Y (Department: 2162)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C382S170000
Reexamination Certificate
active
10885532
ABSTRACT:
A method, system and computer program product for a database management system to be operatively coupled to a data processing system. The data processing system includes memory for storing a data table. The method, system and computer program product for determining frequency of updating a histogram of the data table. The method includes determining sampled histograms for sample portions of the data table from time to time, computing a difference between at least two of the determined sampled histograms, and determining a frequency with which to update the histogram of the data table depending on the amount of the computed difference.
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Myint Dennis
Truong Cam-Y
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