Querying joined data within a search engine index

Details Querying joined data within a search engine index Querying joined data within a search engine index

2009-06-16

2011-12-06

Nguyen, Cam-Linh (Department: 2161)

Data processing: database and file management or data structures

Database and file access

Query optimization

Reexamination Certificate

active

08073840

ABSTRACT:
Techniques and systems for indexing and retrieving data and documents stored in a record-based database management system (RDBMS) utilize a search engine interface. Search-engine indices are created from tables in the RDBMS and data from the tables is used to create “documents” for each record. Queries that require data from multiple tables may be parsed into a primary query and a set of one or more secondary queries. Join mappings and documents are created for the necessary tables. Documents matching the query string are retrieved using the search-engine indices and join mappings.

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