ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,423,284, issued on Sept. 23, was assigned to Unisys Corp. (Blue Bell, Pa.).
"Updating a secondary index from an audit trail" was invented by Kelsey L Bruso (Minneapolis) and James M Plasek (Eagan, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A processor-based method of updating a secondary index for a B-tree in a database in a DBMS to include subsequent changes that occurred during creation of the secondary index includes opening an audit trail and moving back in the audit trail to a captured system time; making the secondary index visible to the DBMS for INSERT, UPDATE and DELETE processing; reading a next committed set of database updates fro...