International Business Machines Corporation

Ping Li

Yun Yu Wang

Daniel Tsunfang Lee

Brian Thinh-Vinh Tran

Gene Y C Fuh

Hsin Pan

Michelle Mei-Chiou Jou

Shahrokh Talmoud

Nelson Mendonca Mattos

Stefan Dessloch

A method, apparatus, and article of manufacture for run-time support for user-defined index ranges and index filters. A statement is executed in a database stored on a data storage device, which is connected to a computer. The database contains data. A search range is generated based on a user-defined range function associated with a user-defined index.

Run-time support for user-defined index ranges and index filters

A method, apparatus, and article of manufacture for a computer-implemented model for user-defined search in Relational Database Management Systems. A statement is executed in a database stored on a data storage device connected to a computer. Data that is qualified by user-defined functions is located based on a model that supports user-defined search.

User-defined search using index exploitation

A method, apparatus, and article of manufacture for computer-implemented support of database indexes based on a generalized B-tree index. The index is stored in a B-tree on a data storage device connected to a computer. In particular, multiple key sources are processed using key transformation. Then, a plurality of key targets are generated based on the processed key sources.

Supporting database indexes based on a generalized B-tree index

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Ping Li