MX9705043A - Indices generalizados de claves. - Google Patents

Indices generalizados de claves.

Info

Publication number
MX9705043A
MX9705043A MX9705043A MX9705043A MX9705043A MX 9705043 A MX9705043 A MX 9705043A MX 9705043 A MX9705043 A MX 9705043A MX 9705043 A MX9705043 A MX 9705043A MX 9705043 A MX9705043 A MX 9705043A
Authority
MX
Mexico
Prior art keywords
generalized
index
key
key indexes
generalized key
Prior art date
Application number
MX9705043A
Other languages
English (en)
Other versions
MXPA97005043A (es
Inventor
Sundaresa Prakash
Original Assignee
Informix Software 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 Informix Software Inc filed Critical Informix Software Inc
Publication of MX9705043A publication Critical patent/MX9705043A/es
Publication of MXPA97005043A publication Critical patent/MXPA97005043A/es

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
    • G06F16/28—Databases characterised by their database models, e.g. relational or object models
    • G06F16/284—Relational databases
    • 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
    • G06F16/2237—Vectors, bitmaps or matrices
    • 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)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

Indices de claves generalizadas, hace posible que una primera tabla de una base de datos correlacionada, sea indexada, usando una clave de índice y condiciones de índice, en que cualquiera o ambas de la clave de índice y las condiciones de índice pueden hacer referencia a multiples tablas de la base de datos o pueden ser una expresion que usa campos de una o más tablas además de la primera tabla. Los índices de claves generalizadas asocian directamente los valores clave deíndice generalizados con los identificadores de registro de los registros de la primera tabla, habilitando así el almacenamiento y la recuperacion de datos eficientes.
MXPA/A/1997/005043A 1996-07-09 1997-07-03 Indices generalizados de claves MXPA97005043A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08677490 1996-07-09
US08/677,490 US5870747A (en) 1996-07-09 1996-07-09 Generalized key indexes

Publications (2)

Publication Number Publication Date
MX9705043A true MX9705043A (es) 1998-07-31
MXPA97005043A MXPA97005043A (es) 1998-11-09

Family

ID=

Also Published As

Publication number Publication date
AU713109B2 (en) 1999-11-25
BR9703939A (pt) 1998-09-08
CA2209978A1 (en) 1998-01-09
EP0818743A2 (en) 1998-01-14
JPH10143538A (ja) 1998-05-29
US5870747A (en) 1999-02-09
JP4132136B2 (ja) 2008-08-13
EP0818743A3 (en) 1999-08-18
AU2836197A (en) 1998-01-15

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Legal Events

Date Code Title Description
FG Grant or registration
PD Change of proprietorship

Owner name: INTERNATIONAL BUSINESS MACHINES CORPORATION

MM Annulment or lapse due to non-payment of fees