Paraccel LLC

Mario A Guthrie

Barry M Zane

David E Steinhoff

The same data is stored in at least two different database management systems (DBMS's), including a columnar DBMS () and a non-columnar (e.g. row-oriented) DBMS (). The columnar DBMS may provide fast responses to queries involving aggregation, and such queries can be routed to the columnar DBMS. A query may be routed to the non-columnar DBMS if for example the query execution involves only small DBMS tables on the non-columnar DBMS. In some situations, an execution time estimate can be obtained from each DBMS, and the query is routed to the DBMS providing the shortest estimate.

Growing community of inventors

Chula Vista, CA, United States of America

Mario A Guthrie