System and method for sorting data

Details System and method for sorting data System and method for sorting data

G - Physics

06

F

G06F 17/27 (2006.01) G06F 7/00 (2006.01)

Patent

CA 2390849

A method for comparing data, and in particular character data, is disclosed. Two pieces of data are compared to determine if they are within an equivalence class based on using a dictionary sort order table with a non-unique collating sequence. If so, the pieces of data are compared using a dictionary sort order table with a unique collating sequence. The comparison method may be implemented within a sorting module that receives an input data set and then uses the comparison to compare two pieces of data in the input data set at a time. The sorting module uses the result of the comparison method to sort the input data set into equivalence classes. The results of a second comparison provides data sorted within equivalence classes. The sorting module may provide sorting services to a database management system or to a calling program.

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