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JPS6446850A - Data file restoring system - Google Patents

Data file restoring system

Info

Publication number
JPS6446850A
JPS6446850A JP62204616A JP20461687A JPS6446850A JP S6446850 A JPS6446850 A JP S6446850A JP 62204616 A JP62204616 A JP 62204616A JP 20461687 A JP20461687 A JP 20461687A JP S6446850 A JPS6446850 A JP S6446850A
Authority
JP
Japan
Prior art keywords
data
file
replacement
data file
storing
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.)
Pending
Application number
JP62204616A
Other languages
Japanese (ja)
Inventor
Tadashi Imai
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62204616A priority Critical patent/JPS6446850A/en
Publication of JPS6446850A publication Critical patent/JPS6446850A/en
Pending legal-status Critical Current

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  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE:To avoid the omission of data as well as the omission of replacement of data files by registering the date and the place for storage of a replacement data storing file group and a data file storing medium group into a replacement history control file and controlling them. CONSTITUTION:A replacement data file 101 is provided together with a data file replacement means 102, a data file 103, a replacement data storing means 104, a replacement data storing file group 105, a data file storing means 106, a data file storing medium group 107, a replacement history control means 108, a replacement history control file 109, a data file restoring means 110, and a data file restoring instruction means 111. The date and the place for storage of the file 105 and the medium group 107 are registered into the file 109 and controlled. Thus the omission is avoided for data and replacement of data files.
JP62204616A 1987-08-17 1987-08-17 Data file restoring system Pending JPS6446850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204616A JPS6446850A (en) 1987-08-17 1987-08-17 Data file restoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204616A JPS6446850A (en) 1987-08-17 1987-08-17 Data file restoring system

Publications (1)

Publication Number Publication Date
JPS6446850A true JPS6446850A (en) 1989-02-21

Family

ID=16493424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204616A Pending JPS6446850A (en) 1987-08-17 1987-08-17 Data file restoring system

Country Status (1)

Country Link
JP (1) JPS6446850A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0340043A (en) * 1989-07-06 1991-02-20 Hitachi Ltd Database generation management method
JP3852116B2 (en) 1995-11-24 2006-11-29 セイコーエプソン株式会社 Progressive multifocal lens and spectacle lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0340043A (en) * 1989-07-06 1991-02-20 Hitachi Ltd Database generation management method
JP3852116B2 (en) 1995-11-24 2006-11-29 セイコーエプソン株式会社 Progressive multifocal lens and spectacle lens

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