JPH02196349A - File generation management system - Google Patents

File generation management system

Info

Publication number
JPH02196349A
JPH02196349A JP1016767A JP1676789A JPH02196349A JP H02196349 A JPH02196349 A JP H02196349A JP 1016767 A JP1016767 A JP 1016767A JP 1676789 A JP1676789 A JP 1676789A JP H02196349 A JPH02196349 A JP H02196349A
Authority
JP
Japan
Prior art keywords
file
update
contents
stored
memory
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
JP1016767A
Other languages
Japanese (ja)
Inventor
Reiko Ono
大野　玲子
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 JP1016767A priority Critical patent/JPH02196349A/en
Publication of JPH02196349A publication Critical patent/JPH02196349A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36051—Store history of modified file, back-up, update, using different file extensions

Landscapes

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

Abstract

PURPOSE:To manage the file generations with a small capacity of a memory and also to easily confirm the update history of each generation by producing an update history file to hold the update contents and dates of files and by controlling the update of files. CONSTITUTION:A control program 1 of a CPU compares the contents of a file 2a stored in a memory 2 with the contents of a file 2b which is obtained by updating the contents of the file 2a and controls the update contents and dates via a generation control file 3. At the same time, the update contents stored in a change contents stored area 3-2 corresponding to the update date stored in an update date store area 3-1 are added to the file 2b of the memory 2. Thus a file prepared before the file 2b is updated, i.e., the file 2a is produced again. As a result, the file generations can be managed with use of a memory having a small capacity and at the same time the update history of each generation can be easily confirmed.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はファイル更新管理方式に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a file update management method.

〔従来の技術〕[Conventional technology]

従来のファイル更新管理は更新前と更新後のファイルを
それぞれ別ファイルとして記憶装置に保持する方式とな
っていた。Conventional file update management has been a method of storing files before and after updates as separate files in a storage device.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来のファイル更新管理方式は、更新以前のフ
ァイルを記憶装置に保持する必要がある場合、その都度
、ファイル内容のすべてを保持する必要がある為ファイ
ルを保持する為の記憶装置の容量を多く必要とし、また
世代毎の更新履歴がわかりすらいという欠点がある。In the conventional file update management method described above, when it is necessary to retain the file before the update in the storage device, it is necessary to retain all the file contents each time, so the capacity of the storage device to retain the file is reduced. It requires a lot of information, and the update history for each generation is difficult to understand.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のファイル更新管理方式は、ファイルの更新内容
と更新日時を保持する更新履歴ファイルを作成する手段
と、既に前記更新履歴ファイルが存在する場合は新たな
更新内容と更新日時を前記更新履歴ファイルに追加する
手段と、前記更新履歴ファイルに格納さてれいる更新内
容と更新日時を用い更新以前のファイルを再成する手段
とを有することを特徴とする。The file update management method of the present invention includes means for creating an update history file that holds update contents and update dates and times of files, and when the update history file already exists, new update contents and update dates and times are stored in the update history file. and means for regenerating the file before the update using the update content and update date and time stored in the update history file.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の一実施例のブロック図を示す。FIG. 1 shows a block diagram of one embodiment of the invention.

中央処理装置上の制御プログラム１は、記憶装置２上に
格納されているファイル２ａとファイル２ａの内容を更
新して作成されたファイル２ｂの内容を比較しその更新
内容と更新日時を世代管理ファイル３で制御する。The control program 1 on the central processing unit compares the contents of the file 2a stored on the storage device 2 with the contents of the file 2b created by updating the contents of the file 2a, and stores the updated contents and the update date and time in a generation management file. Control with 3.

例えばファイル２ａがファイル２ｂに変更された日時を
世代管理ファイル３の更新日時格納領域３−１に設定し
、更にファイル２ａがファイル２ｂに変更された変更内
容を変更内容格納領域３２に設定し、その後ファイル２
ａを削除する。For example, the date and time when the file 2a was changed to the file 2b is set in the update date and time storage area 3-1 of the generation management file 3, and the change content when the file 2a was changed to the file 2b is set in the change content storage area 32, Then file 2
Delete a.

また、更新日時格納領域３−１に格納されている更新日
時に対応する変更内容格納領域３−２に格納されている
更新内容を記憶装置２上のファイル２ｂに加えることに
よりファイル２ｂが更新される以前のファイルすなわち
ファイル２ａを再成する。Furthermore, the file 2b is updated by adding the update content stored in the change content storage area 3-2 corresponding to the update date and time stored in the update date and time storage area 3-1 to the file 2b on the storage device 2. The previous file, ie, file 2a, is regenerated.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、ファイルの更新内容と更
新日時を保持する更新履歴ファイルの作成しファイルの
更新管理を行うことにより、記憶装置のわずかな容重で
のファイルの世代管理が可能となり、また世代毎の更新
履歴を容易に確認できる効果がある。As explained above, the present invention enables file generation management with a small storage device capacity by creating an update history file that holds file update contents and update dates and managing file updates. It also has the effect of allowing you to easily check the update history for each generation.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例のブロック図である。 １・・・制御プログラム、２・・・記憶装置、２ａ・・
・ファイル、２ｂ・・・ファイル、３・・・世代管理フ
ァイル、３−１・・・更新日時格納領域、３−２・・・
変更内容格納領域。FIG. 1 is a block diagram of one embodiment of the present invention. 1... Control program, 2... Storage device, 2a...
・File, 2b... File, 3... Generation management file, 3-1... Update date and time storage area, 3-2...
Changed content storage area.

Claims (1)

【特許請求の範囲】[Claims] ファイルの更新内容と更新日時を保持する更新履歴ファ
イルを作成する手段と、既に前記更新履歴ファイルが存
在する場合は新たな更新内容と更新日時を前記更新履歴
ファイルに追加する手段と、前記更新履歴ファイルに格
納さてれいる更新内容と更新日時を用い更新以前のファ
イルを再成する手段とを有することを特徴とするファイ
ル世代管理方式。means for creating an update history file that holds update contents and update dates and times of files; means for adding new update contents and update dates and times to the update history file if the update history file already exists; and the update history file. A file generation management method characterized by comprising means for regenerating a file before the update using update contents and update date and time stored in the file.
JP1016767A 1989-01-25 1989-01-25 File generation management system Pending JPH02196349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1016767A JPH02196349A (en) 1989-01-25 1989-01-25 File generation management system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1016767A JPH02196349A (en) 1989-01-25 1989-01-25 File generation management system

Publications (1)

Publication Number Publication Date
JPH02196349A true JPH02196349A (en) 1990-08-02

Family

ID=11925369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1016767A Pending JPH02196349A (en) 1989-01-25 1989-01-25 File generation management system

Country Status (1)

Country Link
JP (1) JPH02196349A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0544073A3 (en) * 1991-09-17 1995-04-19 Mitsubishi Electric Corp
JPH09265419A (en) * 1996-03-28 1997-10-07 Mitsubishi Electric Corp Version management device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0544073A3 (en) * 1991-09-17 1995-04-19 Mitsubishi Electric Corp
EP0740240A3 (en) * 1991-09-17 1997-06-04 Mitsubishi Electric Corp Digital control unit
JPH09265419A (en) * 1996-03-28 1997-10-07 Mitsubishi Electric Corp Version management device and method

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