JPS5730061A - File control system - Google Patents

File control system

Info

Publication number
JPS5730061A
JPS5730061A JP10461280A JP10461280A JPS5730061A JP S5730061 A JPS5730061 A JP S5730061A JP 10461280 A JP10461280 A JP 10461280A JP 10461280 A JP10461280 A JP 10461280A JP S5730061 A JPS5730061 A JP S5730061A
Authority
JP
Japan
Prior art keywords
stage
data
counter
renewal
counters
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.)
Granted
Application number
JP10461280A
Other languages
Japanese (ja)
Other versions
JPS6010329B2 (en
Inventor
Tatsuo Horikoshi
Shigeo Tanabe
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.)
Fuji Facom Corp
Original Assignee
Fuji Facom 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 Fuji Facom Corp filed Critical Fuji Facom Corp
Priority to JP55104612A priority Critical patent/JPS6010329B2/en
Publication of JPS5730061A publication Critical patent/JPS5730061A/en
Publication of JPS6010329B2 publication Critical patent/JPS6010329B2/en
Expired 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

Abstract

PURPOSE:To correctly discriminate the effectiveness of data at the production of a failure, by renewing the post stage write/conter section after the data write-in processing to the said logical record is finished, in writing in the data. CONSTITUTION:Each logical record of a transaction file is provided with the pre- stage writ-counter C1 and the final stage write-counter C2. At the initial stage, the both counters C1, C2 are at ''0''. When the 1st renewal of data TR1(A) is executed, the both counters C1, C2 comes to ''1''. When the 2nd renewal is made for the data TR1(A), the both counters C1, C2 comes to ''2''. If power failure takes place during the 2nd renewal of the date TR1(A), the pre-stage counter C2 comes to ''2'', but the post-stage counter C2 remains ''1''.
JP55104612A 1980-07-30 1980-07-30 File control method Expired JPS6010329B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55104612A JPS6010329B2 (en) 1980-07-30 1980-07-30 File control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55104612A JPS6010329B2 (en) 1980-07-30 1980-07-30 File control method

Publications (2)

Publication Number Publication Date
JPS5730061A true JPS5730061A (en) 1982-02-18
JPS6010329B2 JPS6010329B2 (en) 1985-03-16

Family

ID=14385254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55104612A Expired JPS6010329B2 (en) 1980-07-30 1980-07-30 File control method

Country Status (1)

Country Link
JP (1) JPS6010329B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224499A (en) * 1982-06-22 1983-12-26 Fujitsu Ten Ltd Method for protecting contents of data of data storing ram
JPS5962957A (en) * 1982-08-25 1984-04-10 Fujitsu Ltd Data updating system
JPS60230250A (en) * 1984-04-27 1985-11-15 Meidensha Electric Mfg Co Ltd Data processing system of nonvolatile memory
JPS6121539A (en) * 1984-06-28 1986-01-30 Fujitsu Ltd Generation management system of data file
WO1998000808A1 (en) * 1996-06-28 1998-01-08 Sony Corporation Method and device for processing information

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62140260U (en) * 1986-02-28 1987-09-04

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224499A (en) * 1982-06-22 1983-12-26 Fujitsu Ten Ltd Method for protecting contents of data of data storing ram
JPH0217817B2 (en) * 1982-06-22 1990-04-23 Fujitsu Ten Ltd
JPS5962957A (en) * 1982-08-25 1984-04-10 Fujitsu Ltd Data updating system
JPS60230250A (en) * 1984-04-27 1985-11-15 Meidensha Electric Mfg Co Ltd Data processing system of nonvolatile memory
JPS6121539A (en) * 1984-06-28 1986-01-30 Fujitsu Ltd Generation management system of data file
WO1998000808A1 (en) * 1996-06-28 1998-01-08 Sony Corporation Method and device for processing information
US6662286B2 (en) 1996-06-28 2003-12-09 Sony Corporation Information processing method and information processing apparatus
US7437526B2 (en) 1996-06-28 2008-10-14 Sony Corporation Information processing method and apparatus having data locations accessible by different devices in accordance with different permissions
US7752406B2 (en) 1996-06-28 2010-07-06 Sony Corporation Information processing method and information processing apparatus having data locations accessible by different devices in accordance with different permissions

Also Published As

Publication number Publication date
JPS6010329B2 (en) 1985-03-16

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