Kent L Tracy

US Patent:

57014531, Dec 23, 1997

Filed:

Jul 1, 1993

Appl. No.:

8/086001

Inventors:

Christopher W. Maloney - Overland Park KS
Brian D. Jackson - Belton MO
Kevin B. Mayfield - Lenexa KS
Mark A. Mills - Stillwell KS
Kent A. Tracy - Lenexa KS

Assignee:

Informix Software, Inc. - San Carlos CA

International Classification:

G06F 1730

US Classification:

395602

Abstract:

Logical schemas are used to allow an end user the ability to access and manipulate relational database data without knowledge of the structure of the relational database. A logical schema is first created specifying which tables are available to an end user, and the relationships between columns of those tables. The logical schema defines a structure for the data fields having a master level and a plurality of detail levels. An end user may manipulate the logical schema using a graphical interface to build customized forms, reports, and queries. An end user is not required to be familiar with a database query language, such as SQL, or the structure of the relational database.