Patents Assigned to DATAllegro, Inc.
  • Ultra-shared-nothing parallel database
    Patent number: 7818349
    Abstract: An ultra-shared-nothing parallel database system includes at least one master node and multiple slave nodes. A database consisting of at least one fact table and multiple dimension tables is partitioned and distributed across the slave nodes of the database system so that queries are processed in parallel without requiring the transfer of data between the slave nodes. The fact table and a first dimension table of the database are partitioned across the slave nodes. The other dimension tables of the database are duplicated on each of the slave nodes and at least one of these other dimension tables is partitioned across the slave nodes.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: October 19, 2010
    Assignee: DATAllegro, Inc.
    Inventor: Stuart Frost
  • Workload manager for relational database management systems
    Publication number: 20070299812
    Abstract: A relational database workload manager is provided for dynamically managing processing priorities assigned to queries executing within a relational database management system (RDBMS). The workload manager monitors executing query process threads and at set time intervals reduces the processing priority assigned to each executing query. This automated method of managing relational database queries allows short executing queries within a mixed database workload to remain relatively quick without complicated setup and management.
    Type: Application
    Filed: June 26, 2007
    Publication date: December 27, 2007
    Applicant: DATALLEGRO, INC.
    Inventor: David Salch
  • Non-invasive encryption for relational database management systems
    Publication number: 20060218190
    Abstract: A secure relational database system is provided which utilizes a non-invasive encryption technique. Data pages stored or retrieved by a relational database management system are diverted to a multi-channel hardware encryption engine for processing. Each data page is divided into multiple buffers and distributed among the channels of the hardware encryption engine to be processed simultaneously. The data page is then reassembled and passed on to its intended destination.
    Type: Application
    Filed: March 28, 2006
    Publication date: September 28, 2006
    Applicant: DATALLEGRO, INC.
    Inventors: Stuart Frost, David Salch
  • Ultra-shared-nothing parallel database
    Publication number: 20050187977
    Abstract: An ultra-shared-nothing parallel database system includes at least one master node and multiple slave nodes. A database consisting of at least one fact table and multiple dimension tables is partitioned and distributed across the slave nodes of the database system so that queries are processed in parallel without requiring the transfer of data between the slave nodes. The fact table and a first dimension table of the database are partitioned across the slave nodes. The other dimension tables of the database are duplicated on each of the slave nodes and at least one of these other dimension tables is partitioned across the slave nodes.
    Type: Application
    Filed: February 17, 2005
    Publication date: August 25, 2005
    Applicant: DATAllegro, Inc.
    Inventor: Stuart Frost