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. 02, 2009
Filed:
Nov. 16, 2006
Kelsey L. Bruso, Minneapolis, MN (US);
James M. Plasek, Shoreview, MN (US);
Kelsey L. Bruso, Minneapolis, MN (US);
James M. Plasek, Shoreview, MN (US);
Other;
Abstract
Various approaches for processing a B+ tree data structure are described. In one approach, a first data record is deleted from the database as part of processing a first transaction. After removing the first data record, it is determined whether a first data page from which the record was removed should be merged. If the first data page is to be merged, merging of the data page is delayed until after the first transaction has been committed. After committing the first transaction, a nested transaction is initiated to merge of the first data page, and the nested transaction is committed after the data page has been merged.