FR2718870B1 - Dispositif et procédé de calibration des modèles de coût. - Google Patents

Dispositif et procédé de calibration des modèles de coût.

Info

Publication number
FR2718870B1
FR2718870B1 FR9404330A FR9404330A FR2718870B1 FR 2718870 B1 FR2718870 B1 FR 2718870B1 FR 9404330 A FR9404330 A FR 9404330A FR 9404330 A FR9404330 A FR 9404330A FR 2718870 B1 FR2718870 B1 FR 2718870B1
Authority
FR
France
Prior art keywords
cost models
calibrating cost
calibrating
models
cost
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
FR9404330A
Other languages
English (en)
Other versions
FR2718870A1 (fr
Inventor
Frederic Andres
Fred Kwakkel
Martin Kerssten
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.)
Bull SA
Original Assignee
Bull SA
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 Bull SA filed Critical Bull SA
Priority to FR9404330A priority Critical patent/FR2718870B1/fr
Publication of FR2718870A1 publication Critical patent/FR2718870A1/fr
Application granted granted Critical
Publication of FR2718870B1 publication Critical patent/FR2718870B1/fr
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
    • G06F16/2453—Query optimisation
    • G06F16/24534—Query rewriting; Transformation
    • G06F16/24547—Optimisations to support specific applications; Extensibility of optimisers
    • 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
    • G06F16/2453—Query optimisation
    • G06F16/24534—Query rewriting; Transformation
    • G06F16/24542—Plan optimisation
FR9404330A 1994-04-13 1994-04-13 Dispositif et procédé de calibration des modèles de coût. Expired - Fee Related FR2718870B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9404330A FR2718870B1 (fr) 1994-04-13 1994-04-13 Dispositif et procédé de calibration des modèles de coût.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9404330A FR2718870B1 (fr) 1994-04-13 1994-04-13 Dispositif et procédé de calibration des modèles de coût.

Publications (2)

Publication Number Publication Date
FR2718870A1 FR2718870A1 (fr) 1995-10-20
FR2718870B1 true FR2718870B1 (fr) 1996-05-31

Family

ID=9462013

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9404330A Expired - Fee Related FR2718870B1 (fr) 1994-04-13 1994-04-13 Dispositif et procédé de calibration des modèles de coût.

Country Status (1)

Country Link
FR (1) FR2718870B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109426962B (zh) * 2017-08-25 2023-04-07 腾讯科技（深圳）有限公司 一种数据模型校准方法、装置和设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5412806A (en) * 1992-08-20 1995-05-02 Hewlett-Packard Company Calibration of logical cost formulae for queries in a heterogeneous DBMS using synthetic database

Also Published As

Publication number Publication date
FR2718870A1 (fr) 1995-10-20

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Legal Events

Date Code Title Description
ST Notification of lapse