WO1991001530A3 - Methods and apparatus for checking the integrity of data base data entries - Google Patents

Methods and apparatus for checking the integrity of data base data entries Download PDF

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Publication number
WO1991001530A3
WO1991001530A3 PCT/US1990/003767 US9003767W WO9101530A3 WO 1991001530 A3 WO1991001530 A3 WO 1991001530A3 US 9003767 W US9003767 W US 9003767W WO 9101530 A3 WO9101530 A3 WO 9101530A3
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WO
WIPO (PCT)
Prior art keywords
constraints
data
records
data base
record
Prior art date
Application number
PCT/US1990/003767
Other languages
French (fr)
Other versions
WO1991001530A2 (en
Inventor
Susan Savell Davey
Original Assignee
Bell Communications Res
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 Bell Communications Res filed Critical Bell Communications Res
Publication of WO1991001530A2 publication Critical patent/WO1991001530A2/en
Publication of WO1991001530A3 publication Critical patent/WO1991001530A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • 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
    • G06F16/23—Updating
    • G06F16/2365—Ensuring data consistency and integrity

Abstract

A method and apparatus for testing the integrity of the data in a large data base is described. The constraints on the values of the data are represented by data descriptor records having the same format as the data records. These constraints specify intra-record constraints, inter-record constraints and conditional constraints, i.e., constraints which depend upon the satisfaction of some condition such as a particular data value. These descriptor records are compiled directly into executable code which, in turn, can test each record of the data base for conformance with the constraints specified. Such code can be compiled 'on the fly' as needed to test particular records, or compiled off-line and called whenever needed. The same facilities used to process the application data base records can thus be used to create, modify and delete the constraint descriptor records which may therefore form part of the same data base.
PCT/US1990/003767 1989-07-11 1990-07-03 Methods and apparatus for checking the integrity of data base data entries WO1991001530A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37804889A 1989-07-11 1989-07-11
US378,048 1989-07-11

Publications (2)

Publication Number Publication Date
WO1991001530A2 WO1991001530A2 (en) 1991-02-07
WO1991001530A3 true WO1991001530A3 (en) 1991-04-04

Family

ID=23491517

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/003767 WO1991001530A2 (en) 1989-07-11 1990-07-03 Methods and apparatus for checking the integrity of data base data entries

Country Status (2)

Country Link
CA (1) CA2020711A1 (en)
WO (1) WO1991001530A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6370534B1 (en) * 1999-06-01 2002-04-09 Pliant Technologies, Inc. Blocking techniques for data storage
US6453314B1 (en) 1999-07-30 2002-09-17 International Business Machines Corporation System and method for selective incremental deferred constraint processing after bulk loading data

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479196A (en) * 1982-11-15 1984-10-23 At&T Bell Laboratories Hyperedge entity-relationship data base systems
US4642764A (en) * 1984-08-13 1987-02-10 International Business Machines Corporation Method of developing formal identities and program bases in an optimizing compiler
US4646229A (en) * 1982-11-15 1987-02-24 At&T Bell Laboratories Time-ordered data base
US4774661A (en) * 1985-11-19 1988-09-27 American Telephone And Telegraph Company, At&T Information Systems Database management system with active data dictionary
US4894771A (en) * 1987-12-19 1990-01-16 Ricoh Company, Ltd. Data base management system extending structure
US4947320A (en) * 1988-07-15 1990-08-07 International Business Machines Corporation Method for referential constraint enforcement in a database management system
US4953106A (en) * 1989-05-23 1990-08-28 At&T Bell Laboratories Technique for drawing directed graphs

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479196A (en) * 1982-11-15 1984-10-23 At&T Bell Laboratories Hyperedge entity-relationship data base systems
US4646229A (en) * 1982-11-15 1987-02-24 At&T Bell Laboratories Time-ordered data base
US4642764A (en) * 1984-08-13 1987-02-10 International Business Machines Corporation Method of developing formal identities and program bases in an optimizing compiler
US4774661A (en) * 1985-11-19 1988-09-27 American Telephone And Telegraph Company, At&T Information Systems Database management system with active data dictionary
US4894771A (en) * 1987-12-19 1990-01-16 Ricoh Company, Ltd. Data base management system extending structure
US4947320A (en) * 1988-07-15 1990-08-07 International Business Machines Corporation Method for referential constraint enforcement in a database management system
US4953106A (en) * 1989-05-23 1990-08-28 At&T Bell Laboratories Technique for drawing directed graphs

Also Published As

Publication number Publication date
CA2020711A1 (en) 1991-01-12
WO1991001530A2 (en) 1991-02-07

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