DE3856055T2 - Verfahren und Einrichtung, um gleichzeitigen Zugriff zu indizierten sequentiellen Dateien zu ermöglichen - Google Patents

Verfahren und Einrichtung, um gleichzeitigen Zugriff zu indizierten sequentiellen Dateien zu ermöglichen

Info

Publication number
DE3856055T2
DE3856055T2 DE3856055T DE3856055T DE3856055T2 DE 3856055 T2 DE3856055 T2 DE 3856055T2 DE 3856055 T DE3856055 T DE 3856055T DE 3856055 T DE3856055 T DE 3856055T DE 3856055 T2 DE3856055 T2 DE 3856055T2
Authority
DE
Germany
Prior art keywords
simultaneous access
enable simultaneous
indexed sequential
sequential files
files
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
DE3856055T
Other languages
English (en)
Other versions
DE3856055D1 (de
Inventor
Arthur Grand
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.)
Wang Laboratories Inc
Original Assignee
Wang Laboratories Inc
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 Wang Laboratories Inc filed Critical Wang Laboratories Inc
Publication of DE3856055D1 publication Critical patent/DE3856055D1/de
Application granted granted Critical
Publication of DE3856055T2 publication Critical patent/DE3856055T2/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
    • G06F16/22—Indexing; Data structures therefor; Storage structures
    • G06F16/2228—Indexing structures
    • G06F16/2246—Trees, e.g. B+trees
    • 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
    • Y10S707/99931—Database or file accessing
    • Y10S707/99932—Access augmentation or optimizing
    • 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
    • Y10S707/99931—Database or file accessing
    • Y10S707/99938—Concurrency, e.g. lock management in shared database
DE3856055T 1987-08-10 1988-08-09 Verfahren und Einrichtung, um gleichzeitigen Zugriff zu indizierten sequentiellen Dateien zu ermöglichen Expired - Fee Related DE3856055T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/084,253 US4823310A (en) 1987-08-10 1987-08-10 Device for enabling concurrent access of indexed sequential data files

Publications (2)

Publication Number Publication Date
DE3856055D1 DE3856055D1 (de) 1997-12-04
DE3856055T2 true DE3856055T2 (de) 1998-05-20

Family

ID=22183778

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3856055T Expired - Fee Related DE3856055T2 (de) 1987-08-10 1988-08-09 Verfahren und Einrichtung, um gleichzeitigen Zugriff zu indizierten sequentiellen Dateien zu ermöglichen

Country Status (6)

Country Link
US (1) US4823310A (de)
EP (1) EP0303231B1 (de)
JP (1) JP2761389B2 (de)
AU (1) AU608872B2 (de)
CA (1) CA1288521C (de)
DE (1) DE3856055T2 (de)

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JPH06324928A (ja) * 1993-05-14 1994-11-25 Mitsubishi Electric Corp ログ生成装置とファイルの異なるバージョンの調停のための装置及び異なる場所にあるコンピュータファイルの異なるバージョンを調停するための装置
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US6009425A (en) * 1996-08-21 1999-12-28 International Business Machines Corporation System and method for performing record deletions using index scans
JPH10260876A (ja) * 1997-03-19 1998-09-29 Hitachi Ltd データベースのデータ構造及びデータベースのデータ処理方法
US6510460B1 (en) 1997-12-18 2003-01-21 Sun Microsystems, Inc. Method and apparatus for enforcing locking invariants in multi-threaded systems
US6516354B2 (en) 1997-12-18 2003-02-04 Sun Microsystems, Inc. Method and apparatus for efficient representation of variable length identifiers in a distributed object system
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US10417209B1 (en) 2013-03-14 2019-09-17 Roger Lawrence Deran Concurrent index using copy on write
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Also Published As

Publication number Publication date
JP2761389B2 (ja) 1998-06-04
EP0303231B1 (de) 1997-10-29
US4823310A (en) 1989-04-18
AU2004688A (en) 1989-02-16
AU608872B2 (en) 1991-04-18
DE3856055D1 (de) 1997-12-04
JPS6470839A (en) 1989-03-16
CA1288521C (en) 1991-09-03
EP0303231A2 (de) 1989-02-15
EP0303231A3 (de) 1992-07-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee