Advanced scrolling for relational database applications

Details Advanced scrolling for relational database applications Advanced scrolling for relational database applications

2011-01-11

2011-01-11

Vu, Kimyen (Department: 2435)

Data processing: database and file management or data structures

Database and file access

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Reexamination Certificate

active

07870119

ABSTRACT:
Disclosed are a method, a system and a computer program for scrolling to an arbitrary position in a set of unfetched rows of data in a relational database. Each of the rows has a plurality of columns and a class value in each of the columns. Also, each column of the set of rows of data has class values for a specified data class, and the rows ore ordered in the set according to a given sequence of these classes. The method of this invention, preferably, comprises the steps of identifying one of the rows in the database, and finding that one of the rows by identifying the given sequence of data classes by which the rows are ordered in the database, and for each of the data classes in the given sequence, determining the class value for the data class in the identified one of the rows. These rows may be ordered for purposes of a query in the database. Preferably, values of the data classes in the identified one of the rows are themselves determined, one data class at a time, and in the order in which the data classes occur in the given sequence.

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IBM Technical Disclosure Bulletin, “Orderable, Updateable, Scrollable, Structured Query Language Cursors”, vol. 38, No. 07, Jul. 1995.

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