Qi Cheng

City:

North York

Country:

Canada

Published Applications:

Last publication date:

2013-08-01

Top Assignees for applications by Qi Cheng

The entities that hold a legal rights for patent applications filed by inventor Cheng Qi:

Qi Cheng from North York, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

Executing CASE expressions containing subqueries

Optimized collection of just-in-time statistics for database query optimization

System for aggregation subquery join elimination

Method for aggregation subquery join elimination

System and method for transforming queries using window aggregation

Method and apparatus for deleting data in a database

InventorID:

369173 ⎘