JPH01307847A - File data processing system - Google Patents

Abstract

PURPOSE:To efficiently perform the processing to shorten the processing time by providing a memory file where processing object data is stored besides a processing object file to reduce the number of times of access to the processing object file. CONSTITUTION:When a file data processing program 1 is started, a memory file generating means 11 generates a memory file 4. A memory file retrieving means 13 uses input data inputted through a key input means 12 as the key to retrieve processing object data is outputted through an output means 16. When processing object data cannot be retrieved, a file retrieving means 14 retrieves processing object data in a processing object file 3. Processing object data obtained by this retrieving means 14 is registered in the memory file 4 by a memory file register means 15.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a file input method, and in particular to a file data processing method when reading the same data from a file to be processed many times continuously or discontinuously. Regarding.

[Conventional technology]

Conventionally, this type of file data processing method reads data to be processed from a file to be processed as necessary.

[Problem to be solved by the invention]

The conventional file data processing method described above requires access to the file to be processed each time, even when reading the same data from the file to be processed many times, either continuously or discontinuously. The drawback is that it is inefficient and takes a lot of processing time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a file data processing method that reduces the number of accesses to a file to be processed as much as possible in order to solve the above-mentioned problems, improves processing efficiency, and shortens processing time.

[Means to solve the problem]

The file data processing method of the present invention includes a memory file creation means for creating a memory file for storing data to be processed on a memory, a key input means for receiving data serving as a key for the data to be processed, and the key input means. a memory file search means for searching for data to be processed in the memory file using the obtained data as a key; and a memory file search means for searching for data to be processed in the file to be processed using the key when the memory file search means has not been able to search for the data to be processed in the file to be processed; It is characterized by comprising a file search means for searching data, and a memory file registration means for registering the processing target data obtained by the file search means in the memory file.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a file data processing system according to an embodiment of the present invention. In the figure, the file data processing method includes a file data processing program 1, input data 2, a processing target file 3, a memory file 4, and output data 5. The file data processing program 1 includes a memory file creation means 11, a key input means 12, a memory file search means 13, a file search means 14, a memory file registration means 15, and an output means 16. ing.

Input data 2 is the key when searching for processing target data from processing target file 3 or memory file 4 (
(See Figure 3(a)).

The processing target file 3 is configured on a randomly accessible auxiliary storage device such as a magnetic disk device,
A plurality of keys are stored as part of the data (see FIG. 3(b)).

The memory file 4 is configured on a randomly accessible main storage device such as a RAM, and is stored in the same manner as the processing target file 3, and is used to search for processing target data by the file data processing program 1 or to process the processing target file 3. This is a file for registering data to be processed that has been read in (see FIG. 3(C)).

Output data 5 is the processing target data searched by the file data processing program 1 (see FIG. 3(f)).
.

FIG. 2 is a flow chart showing the operation of the file data processing method. In the figure, the processing of the file data processing method is as follows:
an initial determination step 21, a memory file creation step 22, a key input step 23, a process target data search step 24 in the memory file, a search determination step 25, a process target data search step 26 in the process target file, It has a memory file registration step 27 and a data output step 28.

Next, we will explain the operation of the file data processing method in Figure 3 (
This will be explained with reference to a) to (f).

When the file data processing program 1 is started, this is the first time this program has been started (the judgment in step 21 is YES), so the memory file creation means 11
creates memory file 4 (step 22).

Next, the key input means 12 inputs 2□ into the key data of the data to be processed from the field ■ (step 23). Then, the memory file search means 13 receives the field 2 from the key input means 12, uses the data in the field 2 as a key, accesses a memory file such as that shown in FIG. Search for processing target data having (step 24).

If a matching key is not found (search determination step 2)
5 is no), the file search means 14 searches the data in the field 2. Using this as a key, a file to be processed, for example as shown in FIG. 3(b), is accessed and data to be processed F2 having a matching key is searched for (step 26).

Subsequently, the memory file registration means 15 registers the processing target data F2 obtained by the file search means 14 in the memory file M1 as shown in FIG. 3(d) (step 27).
) and output it via the output means 16 to the 311ffi.
(f) is set in field O (step 28).

This completes the first operation.

Next, when a request to input data with K11 as the key comes,
If this is the second time (the first judgment 21 is NO), the key input means 12 inputs the data 11 which is the key of the data to be processed from the field (2) (step 23). Then, the memory file search means 13 receives the field ■ from the key input means 12, uses the data Kll of the field ■ as a key, and accesses the memory file shown in FIG. (step 24).

Because no matching key is found (search determination step 2)
5 is no), the file search means 14 accesses the processing target file shown in FIG. 3(b) using 11 as a key for the data in the field ■, and searches for processing target data F1 having a key matching (-). Step 26). Subsequently, the memory file registration means 15 registers the processing target data F1 obtained by the file search means 14 in the memory file M2 as shown in FIG. Field O in Figure 3(f)
(step 28). This completes the second operation.

Next, when a request to input data with K21 as the key comes,
Since this is the third time (first time determination 21 is NO), the key input means 12 inputs 21 from field 2 as the key data for the data to be processed (step 23). Then, the memory file search means 13 receives the field E from the key input means 12, accesses the memory file shown in FIG. (step 24). At this time, data M1 with 21 as the key
Since it has been retrieved (retrieval decision 25 is YES), it is set in field 0 of FIG. 3 (f>) via the output means (step 28).

〔Effect of the invention〕

The present invention avoids accessing files in a magnetic disk device, which is an auxiliary storage device, and stores and accesses file data in the memory, which is a main storage device, so that the same data can be used repeatedly. This has the effect of shortening the time required to access files.

[Brief explanation of the drawing]

Fig. 1 shows a block diagram showing an embodiment of the file data processing method of the present invention, Fig. 2 is a flow chart showing the processing procedure, and Fig. 3 shows a block diagram showing an embodiment of the file data processing method of the present invention.
Figures (a) to (f) are explanatory diagrams showing data formats. DESCRIPTION OF SYMBOLS 1...File data processing program, 2...Input data, 3...Processing target file, 4...Memory file, 5...Output data, 11...Memory file creation means, 12... - Key input means, 13...Memory file search means, 14...File search means, 1
5...Memory file registration means, 16...Output means.

Claims (1)

[Claims] a memory file creation means for creating a memory file in which data to be processed is stored in a memory; a key input means for receiving data serving as a key for the data to be processed; and a key input means for generating the memory file using the data obtained by the key input means as a key. a memory file search means for searching for data to be processed in the file to be processed using the key when the memory file search means has not been able to search for the data to be processed; A file data processing method comprising: memory file registration means for registering processing target data obtained by the file search means in the memory file.