The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2005
Filed:
Jun. 26, 2002
Surajit Chaudhuri, Redmond, WA (US);
Ashish Kumar Gupta, Seattle, WA (US);
Vivek Narasayya, Redmond, WA (US);
Sanjay Agrawal, Kirkland, WA (US);
Surajit Chaudhuri, Redmond, WA (US);
Ashish Kumar Gupta, Seattle, WA (US);
Vivek Narasayya, Redmond, WA (US);
Sanjay Agrawal, Kirkland, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Relational database applications such as index selection, histogram tuning, approximate query processing, and statistics selection have recognized the importance of leveraging workloads. Often these applications are presented with large workloads, i.e., a set of SQL DML statements, as input. A key factor affecting the scalability of such applications is the size of the workload. The invention concerns workload compression which helps improve the scalability of such applications. The exemplary embodiment is broadly applicable to a variety of workload-driven applications, while allowing for incorporation of application specific knowledge. The process is described in detail in the context of two workload-driven applications: index selection and approximate query processing.