Patents by Inventor Douglas Chrystall

Douglas Chrystall 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).

  • Patent number: 8898136
    Abstract: A database statement categorization system can enable DBAs or other users to more easily find tunable database statements by categorizing the database statements. The database categorization system can analyze a DBMS to identify the types of database statements executed on the DBMS and can then categorize the statements automatically, outputting the categorization for presentation to a DBA (or other user). This categorization can advantageously separate less relevant statements that warrant less tuning or investigation from more relevant statements that may have a measurable impact on the performance of the database. By allowing users to focus on statements that are more likely to warrant attention, in certain embodiments the database categorization system streamlines the tuning process.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: November 25, 2014
    Assignee: Dell Software Inc.
    Inventors: Ariel Nissim Weil, Douglas Chrystall, Patrick Joseph O'Keeffe
  • Patent number: 8527543
    Abstract: A database statement categorization system can enable DBAs or other users to more easily find tunable database statements by categorizing the database statements. The database categorization system can analyze a DBMS to identify the types of database statements executed on the DBMS and can then categorize the statements automatically, outputting the categorization for presentation to a DBA (or other user). This categorization can advantageously separate less relevant statements that warrant less tuning or investigation from more relevant statements that may have a measurable impact on the performance of the database. By allowing users to focus on statements that are more likely to warrant attention, in certain embodiments the database categorization system streamlines the tuning process.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: September 3, 2013
    Assignee: Quest Software, Inc.
    Inventors: Ariel Nissim Weil, Douglas Chrystall, Patrick Joseph O'Keeffe
  • Patent number: 8260750
    Abstract: This disclosure describes systems and methods for programmatically determining whether to perform full or partial backups. In some implementations, functionality is provided for intelligently escalating to a full backup based on one or more user-supplied escalation parameters. The escalation parameters can include a threshold of data change between backup files, which if exceeded, can result in escalation to a full backup. The escalation parameters can also include time parameters, computing resource consumption parameters, and other features that can govern full backup escalation. Additional features of the systems and methods described herein can include automatic adjustment of escalation parameters, multi-leveled backup set validation, and intelligent backup file cleanup.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: September 4, 2012
    Assignee: Quest Software, Inc.
    Inventors: David Mark Gugick, Douglas Chrystall, David Michael Swanson