JPH05120109A - File checking system - Google Patents

Abstract

PURPOSE:To automatically prevent the same file from being stored doubly in a data base due to a misoperation. CONSTITUTION:When a data reading-in part 3 reads in a file of a magnetic tape 1 or a magnetic disk 2, a discrimination code of this file and a finished flag are stored in a file information file 5 by allowing them to correspond to each other, and also, in accordance with the discrimination code of the read-in file, a file information managing part 4 checks the file information file 5, and if the finished flag of the discrimination core exists, a command is sent out to the data reading-in part 3 and read-in of the file is suspended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file check method for preventing double storage of the same file in an information processing apparatus which stores a plurality of files as a database.

[0002]

2. Description of the Related Art When reading a large number of files and accumulating them as a database, the specified file is input as it is without checking whether the file to be input has already been input. On the side of the processing device, the file to be input is simply read in accordance with this and is stored as it is as a database.

[0003]

However, if a given file is stored as it is, the same file may be repeatedly input due to an operator error or the like. In this case, the same file is stored in the database. In addition to unnecessarily occupying the capacity of the database, it hinders the search and must be eliminated. However, this has a drawback that it requires a lot of trouble. Therefore, an object of the present invention is to provide a file check method capable of preventing double accumulation of the same file.

[0004]

In order to achieve the above-mentioned object, the present invention, in the above-mentioned information processing apparatus, stores the read file by the set of the done flag corresponding to the identification code of this file. Means and
A file information management means for checking the contents of the file information storage means according to the identification code of the newly read file and stopping the reading of the file when the completion flag corresponding to the identification code is set is provided. It is a thing.

[0005]

Therefore, if the same file is repeatedly input due to an operation error, the file information management means checks to find that the file has been read and automatically prevents the file from being reloaded.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the block diagram of FIG. In the figure, the contents of a magnetic tape (hereinafter referred to as MT) 1 and a magnetic disk (hereinafter referred to as MD) 2 in which data files are stored are accumulated as a database, and the data of MT1 or MD2 is read by a data reading unit. When the (hereinafter, DRD) 3 reads, the first record and the last record that make up the file are transferred to the file information management unit (hereinafter, FIC) 4, and the file information file (hereinafter,
The identification code of the file and the completion flag are stored in the FIF) 5 in association with each other, and the completion flag is set, while other records are sent to the database updating unit (hereinafter, DBR) 6 and The data was edited and the database (hereinafter DT
B) Stored in 7 or updated.

The following table shows the contents of FIFO5, file I
The identification code of the file is stored as D, the completion flag is stored in the check box, and it is determined that the accumulation or update of the file is completed according to the last record of the file to be accumulated, and the completion flag is set to “1”. It is supposed to be set.

[0008]

[Table 1]

Therefore, the file newly read through the DRD 3, accumulated in the DTB 7, or updated is stored in the FIFO 5 in correspondence with each other by storing the identification code of the file and setting the completed flag. To be done.

Further, the contents of MT1 or MD2 are DRD
When the third record is read, the FIC4 searches the contents of the FIF5 in response to the first record being given to the FIC4, checks whether the identification flag of the file and the corresponding flag are set, and When it is set, a command is sent to the DRD 3 to stop reading the file.

Therefore, if the same file is input again due to an erroneous operation, the reloading by the DRD 3 is automatically stopped, and the re-accumulation or re-update in the DTB 7 via the DBR 6 is prevented.

[0012]

As is apparent from the above description, according to the present invention, the read file is stored by the set of the completed flag corresponding to the identification code of the file, and the content of the file is newly read. Check that the file has been read, and the reading of the file is stopped when the corresponding flag corresponding to the identification code is set. Since the re-accumulation is completely eliminated, a remarkable effect can be obtained in the file check of the information processing device.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 3 Data reading section 4 File information management section 5 File information file 7 Database

Claims (1)

[Claims] 1. An information processing apparatus for reading a plurality of files and accumulating them as a database, and a file information storage means for storing the read files by a set of a completion flag corresponding to the identification code of the files, and a newly read file. File information management means for checking the contents of the file information storage means in accordance with the identification code and stopping reading of the file when the done flag corresponding to the identification code is set. File check method.