Browse Prior Art Database

Data Retrieval Method

IP.com Disclosure Number: IPCOM000093681D
Original Publication Date: 1966-Jan-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Harmon, JH: AUTHOR

Abstract

Data can be organized into various levels. For example, the first level can include a person's name, social security number and number of dependents. The second level can contain information regarding his employment, and the third level more detailed personnel information. In this method, each level of data contains a key designating the next level of data and the address of that data.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Data Retrieval Method

Data can be organized into various levels. For example, the first level can include a person's name, social security number and number of dependents. The second level can contain information regarding his employment, and the third level more detailed personnel information. In this method, each level of data contains a key designating the next level of data and the address of that data.

Thus, the system using the method can automatically retrieve data at a given level by designating the desired level and addressing the first level. The data retrieved at the first level contains the next level key and appropriate addressing to allow the next level of retrieval to be executed automatically. This operation continues through the specified number of levels. At the specified level, the desired record is read out to the system and this method and retrieval of additional levels ceases.

Since each retrieval level carries appropriate description information, it is possible to allow, flexible storage devices such as disk files to contain control information which allows data to be retrieved from bulk storage devices such as strip files.

1