JPS63228348A - Filing device - Google Patents

Abstract

PURPOSE:To enhance the automatization of generation control of file by forming two files, provided every member, which contain members and a generation information control file for executing the generation control of the files. CONSTITUTION:Two files which are put in different spots in order to be controlled every members A, B-X are provided and they contains the respective members A, B-X so as to constitute the files 1 and 2. The generation information control file 3 is the file for controlling the new and old generations of every member of the files 1 and 2 and consists of a hash block 4 and a member information block 5. The hash block 4 is divided into a hash record 4a in which the name of member and the pointer of a member information record 5a are recorded and the member information block 5 is divided into the member information record 5a, whose generation control information the display of the new and old generations of the files 1 and 2 is written in and whose member control information the information for accessing the files 1 and 2 is written in. Thus, the generation control of file can be automatically executed and the generation control of file can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a two-generation management method for files consisting of a plurality of members in a computer system.

(Prior art) Conventionally, the management of the old and new generations of each member of a file has been done manually, and as shown in Figure 3, it is necessary to group the new generation members in one file and the old generation members in the other file. Ta.

(Problems to be Solved by the Invention) The conventional file generation management method described above manually manages the old and new generations of each member in a file.
Since it is necessary to combine members of the same generation into one file, there is a drawback that file generation management is time-consuming.

[Means for solving problems]

The file device of the present invention is provided for each member and consists of two files accommodating the member and a generation information management file for managing the generations of these files.

(Operation) In this way, by creating two files for each member and providing a management file to manage these files, conventional manual file generation management can be automated.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of the file device of the present invention, showing the structure of a file, and FIG. 2 shows the structure of a member information management file.

Members A, B-X will be placed in a management location 2
Two files are provided, each member △.

It accommodates B to x, and constitutes files 1 and 2. The generation information management file 3 manages the old and new generations for each member of these files 1.2, and consists of a hash block 4 and a member information block 5, in which the member name and a pointer to the member information record 5a are written. The latter is divided into member information records 5a and 5a.
The generation management information indicates whether files 1 and 2 are old or new, and the member management information includes information for accessing files 1 and 2.

When reading and updating members, the member information management file 3 is accessed, the hash record 4aV is searched by the member name, and the position of the member information record 5a is obtained from the pointer. Recognizes the generations of files 1 and 2 from the generation management information and reads the desired file 1 or 2. When updating, the old member is rewritten and the "old" displayed in the generation management information is changed to "new". ”, change “new” to “old”.

〔Effect of the invention〕

As explained above, the present invention makes it possible to automate the conventional manual file generation management by creating two files for each member and providing a management file to manage the generations of these files. This has the effect of making generation management easier.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an embodiment of the file system of the present invention, FIG. 2 is a diagram showing the structure of a member information management file 3, and FIG.
The figure is a file configuration diagram showing a conventional method. 1.2...Member file, 3...Generation information management file, 4...
・・・・・・Hatush block, 5・・・・・・・・・
Member information block, 4a... hash record, 5a... member information record. Figure 1 C, +1 '7j-L Kore 4a Figure 2 1st day 1! = I don't like it
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Claims (1)

[Scope of Claims] A file device comprising two files provided for each member and accommodating the member, and a generation information management file for managing the generations of these files.