DE69523020T2 - Identifizierung von stabilen Schreibvorgängen in schwachkonsistenten replizierten Datenbanken unter Erhaltung des Zugriffsrechts für alle Schreibvorgänge - Google Patents

Identifizierung von stabilen Schreibvorgängen in schwachkonsistenten replizierten Datenbanken unter Erhaltung des Zugriffsrechts für alle Schreibvorgänge

Info

Publication number
DE69523020T2
DE69523020T2 DE69523020T DE69523020T DE69523020T2 DE 69523020 T2 DE69523020 T2 DE 69523020T2 DE 69523020 T DE69523020 T DE 69523020T DE 69523020 T DE69523020 T DE 69523020T DE 69523020 T2 DE69523020 T2 DE 69523020T2
Authority
DE
Germany
Prior art keywords
writes
identification
stable
access rights
maintaining access
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 - Lifetime
Application number
DE69523020T
Other languages
English (en)
Other versions
DE69523020D1 (de
Inventor
Douglas B Terry
Marvin M Theimer
Alan J Demers
Karin Petersen
Michael J Spreitzer
Brent B Welch
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of DE69523020D1 publication Critical patent/DE69523020D1/de
Publication of DE69523020T2 publication Critical patent/DE69523020T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/23Updating
    • G06F16/2308Concurrency control
    • G06F16/2315Optimistic concurrency control
    • G06F16/2329Optimistic concurrency control using versioning
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/23Updating
    • G06F16/2379Updates performed during online database operations; commit processing
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00Data processing: database and file management or data structures
    • Y10S707/99931Database or file accessing
    • Y10S707/99938Concurrency, e.g. lock management in shared database
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00Data processing: database and file management or data structures
    • Y10S707/99931Database or file accessing
    • Y10S707/99939Privileged access
DE69523020T 1994-12-07 1995-12-06 Identifizierung von stabilen Schreibvorgängen in schwachkonsistenten replizierten Datenbanken unter Erhaltung des Zugriffsrechts für alle Schreibvorgänge Expired - Lifetime DE69523020T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/352,013 US5577240A (en) 1994-12-07 1994-12-07 Identification of stable writes in weakly consistent replicated databases while providing access to all writes in such a database

Publications (2)

Publication Number Publication Date
DE69523020D1 DE69523020D1 (de) 2001-11-08
DE69523020T2 true DE69523020T2 (de) 2002-02-07

Family

ID=23383431

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69523020T Expired - Lifetime DE69523020T2 (de) 1994-12-07 1995-12-06 Identifizierung von stabilen Schreibvorgängen in schwachkonsistenten replizierten Datenbanken unter Erhaltung des Zugriffsrechts für alle Schreibvorgänge

Country Status (4)

Country Link
US (1) US5577240A (de)
EP (1) EP0716383B1 (de)
JP (1) JP2731375B2 (de)
DE (1) DE69523020T2 (de)

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US5950203A (en) * 1997-12-31 1999-09-07 Mercury Computer Systems, Inc. Method and apparatus for high-speed access to and sharing of storage devices on a networked digital data processing system
US6658417B1 (en) 1997-12-31 2003-12-02 International Business Machines Corporation Term-based methods and apparatus for access to files on shared storage devices
US6016501A (en) * 1998-03-18 2000-01-18 Bmc Software Enterprise data movement system and method which performs data load and changed data propagation operations
US6029178A (en) * 1998-03-18 2000-02-22 Bmc Software Enterprise data movement system and method which maintains and compares edition levels for consistency of replicated data
US6035307A (en) * 1998-03-30 2000-03-07 Bmc Software Enterprise data movement system and method including opportunistic performance of utilities and data move operations for improved efficiency
JP3756349B2 (ja) * 1999-06-17 2006-03-15 シャープ株式会社 データベース管理装置、および、そのプログラムが記録された記録媒体
US6557111B1 (en) 1999-11-29 2003-04-29 Xerox Corporation Multicast-enhanced update propagation in a weakly-consistant, replicated data storage system
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Also Published As

Publication number Publication date
JPH08241237A (ja) 1996-09-17
JP2731375B2 (ja) 1998-03-25
EP0716383A3 (de) 1996-07-03
EP0716383A2 (de) 1996-06-12
US5577240A (en) 1996-11-19
DE69523020D1 (de) 2001-11-08
EP0716383B1 (de) 2001-10-04

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