Explicit key paging

Details Explicit key paging Explicit key paging

2006-06-23

2009-08-11

Wong, Don (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000

Reexamination Certificate

active

07574421

ABSTRACT:
A method of retrieving a page of records from a database system may include receiving a first query from a client device that, when processed by a database system, identifies a plurality of records that have a specified order and that are transmittable to the client device in pages that each have a fixed number of records. The method may further include receiving input identifying a specific page of records; generating a second query from the first query and the received input; submitting the second query to the database system for processing to retrieve the determined records; and transmitting the retrieved, determined records to the client device. When processed, the second query may (i) identify a first subset of the plurality of records; (ii) identify a second subset; and (iii) determine records in the first subset that are not in the second subset.

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