Patents by Inventor Guido Rost

Guido Rost has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Algorithm to find LOB value in a relational table after key columns have been modified
    Patent number: 7203712
    Abstract: A method and system for asynchronously replicating data changes in a database system captures update information for a data update in a source table from a database log, where the data value from the data update is not in the database log. A query is built to obtain the data value from the source table using the update information, including a key column value that identifies the row of the source table in which the data resides. When the key column is also updated in the same or different transaction, the data update information is stored, and the updated key column value is replaced with a later captured key column update value. The query is built and executed, and the data update is replicated at a target table. In this manner, data objects whose values are not recorded in a database log can be asynchronously replicated in a database system.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: April 10, 2007
    Assignee: International Business Machines Corporation
    Inventors: Nicolas G. Adiba, Jaime F. Anaya, Bruce G. Lindsay, Guido Rost, Budi Surjanto
  • Algorithm to find LOB value in a relational table after key columns have been modified
    Publication number: 20050193040
    Abstract: A method and system for asynchronously replicating data changes in a database system captures update information for a data update in a source table from a database log, where the data value from the data update is not in the database log. A query is built to obtain the data value from the source table using the update information, including a key column value that identifies the row of the source table in which the data resides. When the key column is also updated in the same or different transaction, the data update information is stored, and the updated key column value is replaced with a later captured key column update value. The query is built and executed, and the data update is replicated at a target table. In this manner, data objects whose values are not recorded in a database log can be asynchronously replicated in a database system.
    Type: Application
    Filed: February 26, 2004
    Publication date: September 1, 2005
    Inventors: Nicolas Adiba, Jaime Anaya, Bruce Lindsay, Guido Rost, Budi Surjanto