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CA2253744A1 - Indexing databases for efficient relational querying - Google Patents

Indexing databases for efficient relational querying Download PDF

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Publication number
CA2253744A1
CA2253744A1 CA002253744A CA2253744A CA2253744A1 CA 2253744 A1 CA2253744 A1 CA 2253744A1 CA 002253744 A CA002253744 A CA 002253744A CA 2253744 A CA2253744 A CA 2253744A CA 2253744 A1 CA2253744 A1 CA 2253744A1
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source data
data
file
index files
index
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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.)
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CA002253744A
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French (fr)
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CA2253744C (en
Inventor
Mariano Paulo Consens
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Progress Software Corp
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Individual
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Priority to CA002253744A priority Critical patent/CA2253744C/en
Publication of CA2253744A1 publication Critical patent/CA2253744A1/en
Application granted granted Critical
Publication of CA2253744C publication Critical patent/CA2253744C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

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  • 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

A computer system for indexing databases for efficient relational querying. A set of index files is created to index an entire set of structured or semi-structured source data. The source data is tokenized. During the tokenization of the source data the source data is manipulated in accordance with the relational data base model. Tokens are generated in the index files to represent the table and the column in the source data for following value tokens. Index files are created to map into the position of data in the source file, and index files which represent the data as sorted lexicographically. The index files include a sort vector file and an associated join bit file. The system provides for efficient relational queries across the entire source data by use of the sort vector file, the join bit file, and related inverted files.
CA002253744A 1998-11-10 1998-11-10 Indexing databases for efficient relational querying Expired - Lifetime CA2253744C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002253744A CA2253744C (en) 1998-11-10 1998-11-10 Indexing databases for efficient relational querying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002253744A CA2253744C (en) 1998-11-10 1998-11-10 Indexing databases for efficient relational querying

Publications (2)

Publication Number Publication Date
CA2253744A1 true CA2253744A1 (en) 2000-05-10
CA2253744C CA2253744C (en) 2004-08-24

Family

ID=29425632

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002253744A Expired - Lifetime CA2253744C (en) 1998-11-10 1998-11-10 Indexing databases for efficient relational querying

Country Status (1)

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CA (1) CA2253744C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2409078A (en) * 2001-02-26 2005-06-15 Ori Software Dev Ltd Encoding semi-structured data for efficient search and browsing
GB2389690B (en) * 2001-02-26 2005-09-07 Ori Software Dev Ltd Encoding semi-structured data for efficient search and browsing
WO2013148853A1 (en) * 2012-03-29 2013-10-03 The Echo Nest Corporation Real time mapping of user models to an inverted data index for retrieval, filtering and recommendation
US9158754B2 (en) 2012-03-29 2015-10-13 The Echo Nest Corporation Named entity extraction from a block of text
US9406072B2 (en) 2012-03-29 2016-08-02 Spotify Ab Demographic and media preference prediction using media content data analysis
US9547679B2 (en) 2012-03-29 2017-01-17 Spotify Ab Demographic and media preference prediction using media content data analysis
US9798823B2 (en) 2015-11-17 2017-10-24 Spotify Ab System, methods and computer products for determining affinity to a content creator
CN110383263A (en) * 2017-03-20 2019-10-25 国际商业机器公司 The creation cognition intelligence inquiry from multiple data corpus

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2409078A (en) * 2001-02-26 2005-06-15 Ori Software Dev Ltd Encoding semi-structured data for efficient search and browsing
GB2409078B (en) * 2001-02-26 2005-09-07 Ori Software Dev Ltd Encoding semi-structured data for efficient search and browsing
GB2389690B (en) * 2001-02-26 2005-09-07 Ori Software Dev Ltd Encoding semi-structured data for efficient search and browsing
US8065308B2 (en) 2001-02-26 2011-11-22 Ori Software Development Ltd. Encoding semi-structured data for efficient search and browsing
US8489597B2 (en) 2001-02-26 2013-07-16 Ori Software Development Ltd. Encoding semi-structured data for efficient search and browsing
US9547679B2 (en) 2012-03-29 2017-01-17 Spotify Ab Demographic and media preference prediction using media content data analysis
US9158754B2 (en) 2012-03-29 2015-10-13 The Echo Nest Corporation Named entity extraction from a block of text
US9406072B2 (en) 2012-03-29 2016-08-02 Spotify Ab Demographic and media preference prediction using media content data analysis
WO2013148853A1 (en) * 2012-03-29 2013-10-03 The Echo Nest Corporation Real time mapping of user models to an inverted data index for retrieval, filtering and recommendation
US9600466B2 (en) 2012-03-29 2017-03-21 Spotify Ab Named entity extraction from a block of text
US10002123B2 (en) 2012-03-29 2018-06-19 Spotify Ab Named entity extraction from a block of text
US10459904B2 (en) 2012-03-29 2019-10-29 Spotify Ab Real time mapping of user models to an inverted data index for retrieval, filtering and recommendation
US9798823B2 (en) 2015-11-17 2017-10-24 Spotify Ab System, methods and computer products for determining affinity to a content creator
US11210355B2 (en) 2015-11-17 2021-12-28 Spotify Ab System, methods and computer products for determining affinity to a content creator
US12001500B2 (en) 2015-11-17 2024-06-04 Spotify Ab System, methods and computer products for determining affinity to a content creator
CN110383263A (en) * 2017-03-20 2019-10-25 国际商业机器公司 The creation cognition intelligence inquiry from multiple data corpus

Also Published As

Publication number Publication date
CA2253744C (en) 2004-08-24

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Effective date: 20181113