System and method for multicolumn sorting in a single column

Details System and method for multicolumn sorting in a single column System and method for multicolumn sorting in a single column

2007-04-10

2007-04-10

Rones, Charles (Department: 2164)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000

Reexamination Certificate

active

10325715

ABSTRACT:
A system for multicolumn ordering includes a processor and a data store. The data store stores a table including a plurality of category and data columns. The processor applies key prefixes to column data values of a plurality of the data columns to form and store in the data store a set of prefixed data values. The processor then orders the set of prefixed data values in a first compound column and one or more category columns in a second compound column and responsive to the first and second compound columns selects and stores a subset for further processing.

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