DE3855212D1 - Verfahren zur Berechnung eines transitiven Abschlusses - Google Patents

Verfahren zur Berechnung eines transitiven Abschlusses

Info

Publication number
DE3855212D1
DE3855212D1 DE3855212T DE3855212T DE3855212D1 DE 3855212 D1 DE3855212 D1 DE 3855212D1 DE 3855212 T DE3855212 T DE 3855212T DE 3855212 T DE3855212 T DE 3855212T DE 3855212 D1 DE3855212 D1 DE 3855212D1
Authority
DE
Germany
Prior art keywords
calculating
procedure
transitive closure
transitive
closure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE3855212T
Other languages
English (en)
Other versions
DE3855212T2 (de
Inventor
Rakesh Agrawal
Hosagrahar Visvesvara Jagadish
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR International Inc
Original Assignee
AT&T Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE3855212D1 publication Critical patent/DE3855212D1/de
Publication of DE3855212T2 publication Critical patent/DE3855212T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24—Querying
    • G06F16/245—Query processing
    • G06F16/2455—Query execution
    • G06F16/24564—Applying rules; Deductive queries
    • G06F16/24566—Recursive queries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99941—Database schema or data structure
    • Y10S707/99942—Manipulating data structure, e.g. compression, compaction, compilation

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
DE3855212T 1987-08-31 1988-08-23 Verfahren zur Berechnung eines transitiven Abschlusses Expired - Fee Related DE3855212T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/091,236 US4930072A (en) 1987-08-31 1987-08-31 Method for computing transitive closure

Publications (2)

Publication Number Publication Date
DE3855212D1 true DE3855212D1 (de) 1996-05-23
DE3855212T2 DE3855212T2 (de) 1996-11-28

Family

ID=22226739

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3855212T Expired - Fee Related DE3855212T2 (de) 1987-08-31 1988-08-23 Verfahren zur Berechnung eines transitiven Abschlusses

Country Status (5)

Country Link
US (1) US4930072A (de)
EP (1) EP0306197B1 (de)
JP (1) JPH0682331B2 (de)
CA (1) CA1292574C (de)
DE (1) DE3855212T2 (de)

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US5058002A (en) * 1987-06-23 1991-10-15 Mitsubishi Denki Kabushiki Kaisha Page splitting method and apparatus for a database stored in a plurality of memory storage units
DE3732983A1 (de) * 1987-09-30 1989-04-13 Thomson Brandt Gmbh Cd-spieler mit einem speicher
CA2001390C (en) * 1988-12-19 1997-12-30 Ming-Chien Shan View composition in a data-base management system
US5170480A (en) * 1989-09-25 1992-12-08 International Business Machines Corporation Concurrently applying redo records to backup database in a log sequence using single queue server per queue at a time
US5604899A (en) * 1990-05-21 1997-02-18 Financial Systems Technology Pty. Ltd. Data relationships processor with unlimited expansion capability
US5333318A (en) * 1990-09-27 1994-07-26 Motorola, Inc. Creating and searching a quad linked list in a trunked communication system
US5377201A (en) * 1991-06-18 1994-12-27 Nec Research Institute, Inc. Transitive closure based process for generating test vectors for VLSI circuit
US6101490A (en) * 1991-07-19 2000-08-08 Hatton; Charles Malcolm Computer system program for creating new ideas and solving problems
GB9222884D0 (en) * 1992-10-30 1992-12-16 Massachusetts Inst Technology System for administration of privatization in newly democratic nations
US5497486A (en) * 1994-03-15 1996-03-05 Salvatore J. Stolfo Method of merging large databases in parallel
US5678043A (en) * 1994-09-23 1997-10-14 The Regents Of The University Of Michigan Data compression and encryption system and method representing records as differences between sorted domain ordinals that represent field values
CA2167790A1 (en) * 1995-01-23 1996-07-24 Donald S. Maier Relational database system and method with high data availability during table data restructuring
US5799293A (en) * 1996-11-04 1998-08-25 Ford Global Technologies, Inc. Method for optimizing the design of a product using knowledge-based engineering techniques
DE19709041A1 (de) 1997-03-06 1998-09-10 Rudolf Prof Bayer Datenbanksystem und Verfahren zum Betrieb eines Datenbanksystems
CA2291180A1 (en) 1997-05-23 1998-11-26 Lynx Therapeutics, Inc. System and apparatus for sequential processing of analytes
US6442557B1 (en) 1998-02-27 2002-08-27 Prc Inc. Evaluation of enterprise architecture model including relational database
US6324496B1 (en) * 1998-06-18 2001-11-27 Lucent Technologies Inc. Model checking of hierarchical state machines
US7159005B1 (en) * 1998-10-16 2007-01-02 International Business Machines Corporation Methods, systems and computer program products for restartable multiplexed file transfers
WO2001073544A1 (en) * 2000-03-24 2001-10-04 Kevin Houzhi Xu System and method for databases and programming languages
US6804678B1 (en) * 2001-03-26 2004-10-12 Ncr Corporation Non-blocking parallel band join algorithm
US7085769B1 (en) * 2001-04-26 2006-08-01 Ncr Corporation Method and apparatus for performing hash join
MXPA06015212A (es) * 2004-07-09 2007-03-15 Interdigital Tech Corp Separacion de red de malla, logica y fisica.
US8145872B2 (en) 2004-11-08 2012-03-27 International Business Machines Corporation Autonomic self-tuning of database management system in dynamic logical partitioning environment
US7444350B1 (en) * 2005-03-31 2008-10-28 Emc Corporation Method and apparatus for processing management information
US20080046440A1 (en) * 2006-08-16 2008-02-21 Estes Philip F Method And System For Enforcing User-Defined Relational Limitations In A Recursive Relational Database Table
US9860252B2 (en) 2014-03-25 2018-01-02 Open Text Sa Ulc System and method for maintenance of transitive closure of a graph and user authentication
US9875087B2 (en) * 2015-04-10 2018-01-23 Oracle International Corporation Declarative program engine for large-scale program analysis

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267568A (en) * 1975-12-03 1981-05-12 System Development Corporation Information storage and retrieval system
US4468732A (en) * 1975-12-31 1984-08-28 International Business Machines Corporation Automated logical file design system with reduced data base redundancy
US4422158A (en) * 1980-11-28 1983-12-20 System Development Corporation Method and means for interrogating a layered data base
JPS583031A (ja) * 1981-06-30 1983-01-08 Fujitsu Ltd リレ−シヨナル・モデルにおけるジヨイン演算処理方式
JPS5839341A (ja) * 1981-09-02 1983-03-08 Toshiba Corp デ−タベ−スマネジメントシステムにおけるデ−タのアクセス制御方法及び装置
US4484297A (en) * 1981-10-06 1984-11-20 The United States Of America As Represented By The Secretary Of The Air Force Variable data base generator apparatus
US4627019A (en) * 1982-07-08 1986-12-02 At&T Bell Laboratories Database management system for controlling concurrent access to a database
US4479196A (en) * 1982-11-15 1984-10-23 At&T Bell Laboratories Hyperedge entity-relationship data base systems
US4611298A (en) * 1983-06-03 1986-09-09 Harding And Harris Behavioral Research, Inc. Information storage and retrieval system and method
JPS629432A (ja) * 1985-07-05 1987-01-17 Hitachi Ltd デ−タ編集方法
US4853842A (en) * 1985-09-11 1989-08-01 Texas Instruments Incorporated Computer memory system having persistent objects
US4814971A (en) * 1985-09-11 1989-03-21 Texas Instruments Incorporated Virtual memory recovery system using persistent roots for selective garbage collection and sibling page timestamping for defining checkpoint state
US4809158A (en) * 1985-10-23 1989-02-28 Mccauley Peter B Sorting method and apparatus
US4745559A (en) * 1985-12-27 1988-05-17 Reuters Limited Method and system for dynamically controlling the content of a local receiver data base from a transmitted data base in an information retrieval communication network
US4797810A (en) * 1986-06-26 1989-01-10 Texas Instruments Incorporated Incremental, multi-area, generational, copying garbage collector for use in a virtual address space
JPS6326726A (ja) * 1986-07-21 1988-02-04 Toshiba Corp 情報処理装置

Also Published As

Publication number Publication date
CA1292574C (en) 1991-11-26
JPH01162927A (ja) 1989-06-27
JPH0682331B2 (ja) 1994-10-19
DE3855212T2 (de) 1996-11-28
EP0306197A3 (de) 1991-05-02
EP0306197A2 (de) 1989-03-08
US4930072A (en) 1990-05-29
EP0306197B1 (de) 1996-04-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL, INC., DAYTON, OHIO, US

8328 Change in the person/name/address of the agent

Free format text: V. BEZOLD & SOZIEN, 80799 MUENCHEN

8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee