JPH08137889A - Method and device for data retrieval - Google Patents

Abstract

PURPOSE: To retrieve data at an arbitrary position in an item and do it easily without any knowledge for required generating sort parameters. CONSTITUTION: When designation input of the item to which data on a retrieval object belongs and input of data on the retrieval object are made from an input means 3, start position information, length information, and data type information on the item to which the data on the retrieval object belongs are obtained from an item file 6. Then a retrieval parameter generating means 14 generates the sort parameters for sorting from the data on the retrieval object, and a retrieval executing means 15 retrieves data in a file in a 1st storage means 5 on the basis of the sort parameters, and a retrieval result editing means 16 edits plural retrieval results according to the retrieval conditions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data search method and a data search device for searching required data in a file.

[0002]

2. Description of the Related Art Conventionally, there is known a system in which master data is constructed by an index organization file by an application in consideration of data retrieval. However, when performing a data search in such a system, the search cannot be performed if the data related to the search target is not registered as a key. That is, it is not suitable for searching for a character string or the like located at an arbitrary position in a record.

On the other hand, there is known a method of retrieving data having a predetermined character string (for example, a predetermined city, town, building name in an address) by a COBOL application. However, this method requires the creation of commands and the like, and cannot perform a search with a simple specification. Further, when a search is performed by this COBOL application, a large amount of read time is required for a huge data file because all the data is read and a search is performed for the Kanji field by a command.
It wasn't practical.

[0004]

Further, there is a problem that it is not possible to narrow down the primary search results, and it is not possible to perform a search by combining a plurality of conditions.

The present invention has been made in view of the above problems of the conventional computer system, and an object thereof is to search data such as a character string at an arbitrary position in a record. Another object of the present invention is to provide a data search method and a data search device capable of issuing a search instruction by simple designation. Still another object is to provide a data search method and a data search device that enable a search based on a combination of a plurality of conditions, such as narrowing down primary search results.

[0006]

In the data search method according to the invention described in claim 1 of the present application, the start position information, the length information, and the data type information are stored in association with each other regarding the items inside the record. The start position information, length information, and data type information of the item to which the search target data belongs are obtained from the item file, and the start position information, the length information, the data type information, and the search target data are searched multiple times. It is characterized by creating a sort parameter for sorting, searching the data in the file multiple times based on this sort parameter, and editing the data search results of multiple times according to the search conditions to obtain the final result. To do.

A data search method according to a second aspect of the present invention relates to an item inside a record, and a search target is obtained from an item file in which start position information, length information, and data type information are associated and stored. The start position information, the length information, the data type information of the item to which the data belongs, and create the sort parameter from the start position information, the length information, the data type information, and the search target data,
When searching the data in the file based on this sort parameter and obtaining the search result and further narrowing down the search result, the start position information, length information, and data type information correspond to the items inside the record. The start position information, length information, and data type information of the item to which the search target data belongs are obtained from the attached and stored item file, and these start position information, length information, data type information, and search target data Create a sort parameter from and search the data in the file based on this sort parameter, obtain the search result, and edit the previous search result and the current search result according to the search conditions. And repeat to obtain the final result.

According to a third aspect of the present invention, there is provided a data retrieval apparatus, which relates to first storage means in which a file of data to be retrieved is stored and items in a record of the first storage means. File in which size information and data type information are stored in association with each other, input means for inputting data, display means for displaying data, search target data and search conditions for inputting Display control means for controlling the screen display to be performed in the display means, and when the input of the item to which the search target data belongs and the search target data are input from the input means, from the item file, A sort parameter for obtaining start position information, length information, and data type information of the item to which the search target data belongs and sorting from the search target data. A search parameter creating means for creating a data, a search executing means for executing a data search for a file in the first storage means based on the sort parameter created by the search parameter creating means, and a search executing means for executing the search. It is characterized by comprising a search result editing means for editing a plurality of searched search results according to a search condition.

The data retrieval apparatus according to claim 4 of the present application sets a constant part in a file in the first storage means,
The search result editing means is characterized in that it edits according to the search condition using this constant part.

The data retrieval device according to claim 5 of the present application extracts start position information, length information, and data type information from the file in the first storage means with respect to the items in the record and associates them with the items. It is characterized in that an item registration means for registering in the item file is provided.

The data retrieval apparatus according to claim 6 of the present application is characterized in that it is provided with registration control means for converting the data inputted from the input means into a file in the first storage means and registering it.

The data retrieval apparatus according to claim 7 of the present application is characterized in that it is provided with a second storage means for storing the retrieval result retrieved by the retrieval execution means.

A data search device according to claim 8 of the present application is characterized in that it is provided with an output means for outputting a search result.

[0014]

With the data search method according to the first aspect of the present invention, the search target is selected from the item file in which the start position information, the length information, and the data type information are associated and stored with respect to the items inside the record. To obtain start position information, length information, and data type information of the item to which the data belongs, and to perform multiple sorts from these start position information, length information, data type information, and multiple search target data. The sort parameters are automatically created, the data in the file is searched a plurality of times based on the sort parameters, and the final results are obtained by editing the data search results of the plurality of times according to the search conditions.

With the data search method according to the second aspect of the present invention, the search target is selected from the item file in which the start position information, the length information, and the data type information are associated and stored with respect to the items inside the record. The start position information, length information, and data type information of the item to which the data of belongs belongs are obtained, and a sort parameter is created from these start position information, length information, data type information, and search target data. When the data in the file is searched based on the search result and the search result is further narrowed down, the start position information, the length information, and the data type information are stored in association with each other for the items inside the record. The start position information, length information, and data type information of the item to which the search target data belongs are obtained from the specified item file. Then, a sort parameter is created from these start position information, length information, data type information, and search target data, and the data in the file is searched based on this sort parameter, and the search result is obtained. The final result is obtained by repeating the process of editing the search result and the current search result according to the search condition as necessary.

In the data retrieval apparatus according to claim 3 of the present application, when the input of the item to which the retrieval target data belongs is input and the retrieval target data is input from the input means, the retrieval target data is retrieved from the item file. Obtains start position information, length information, and data type information of the item to which the item belongs, and creates a sort parameter for sorting from the search target data. Based on the created sort parameter, the sort parameter in the first storage means is stored. Performs a data search for files and edits the multiple search results that are searched according to the search conditions.

The data retrieval apparatus according to claim 4 of the present application sets a constant part in the file in the first storage means,
The search result editing means works to edit according to the search condition using this constant part.

The data retrieval apparatus according to claim 5 of the present application extracts the start position information, the length information, and the data type information from the file in the first storage means with respect to the items in the record and associates them with the items. Works like registering in an item file.

The data retrieval apparatus according to claim 6 of the present application functions to register the data input from the input means in the first storage means as a file.

In the data search device according to claim 7 of the present application, the second storage means is provided, and the search result searched by the search execution means is stored.

The data search device according to claim 8 of the present application works to output the searched search result or the edited result.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A data search method and a data search apparatus according to embodiments of the present invention will be described below with reference to the accompanying drawings. In each drawing, the same constituent elements are designated by the same reference numerals, and overlapping description will be omitted. FIG. 1 shows a functional block diagram of a data search device according to the present invention. A display unit 2, an input unit 3, and a print output unit 4 are connected to the processing unit 1 that performs each process related to data retrieval and the like. Further, the processing unit 1 is additionally provided with a master file (first storage means) 5, an item file 6, a parameter file 7, and a search result file (second storage means) 8. Of the respective means in the processing unit 1, at least the display control means 11, the search parameter creation means 14, and the search execution means 1
5. The search result editing means 16 is
It is activated by the operator's input of "SORT", and causes the computer to function as a data search device.

The input means 3 is used for inputting necessary information, and is usually composed of a keyboard or a mouse which is a pointing device. The display means 2 is a display device such as a CRT, a liquid crystal or a plasma, and displays necessary information. The print output means 4 is
Record and output the necessary information.

The master file 5 stores a file of search target data. When a data string to be made into a file is inputted from the input means 3, the registration control means 12 arranges this in a predetermined order in a predetermined format and adds necessary keys and the like to make one record, which is registered in the master file 5 and made into a file. In this case, in addition to the keyboard, an OCR device, a communication device that receives data by communication, or the like can be used as the input unit 3. Further, by setting a storage medium (a file in which a file has been recorded) in the master file 5, the master file 5 can be used as the first storage means in which the file of the search target data is stored.

FIG. 3 shows an example of the data map of the master file 5. In the master file 5, from "HTNo" to the next "HTNo" is a data record for one customer in a hotel system or the like, and each data record is "HTNo" (home terminal number), Key, customer number, name, address, ...
・ It is composed of items. In this embodiment, the X-th byte and the Y-th byte of each record are edited (MERGE).
It is used as a constant part to set the constant used for.

The item registration means 13 of the processing unit 1 extracts start position information, length information, and data type information from the file of the master file 5 with respect to the items inside the record and associates them with the item (name) to make the item file. Register at 6. FIG. 4 shows an example of the start position information, length information, and data type information of each item registered in this way. In other words, for each item number, the item name, start position (byte), length (byte length), and data type (classification of kanji and other types (that is, alphanumeric and kanji type)) are stored. To be done.

When the instruction to start the data search process is input, the display control means 11 controls the display means 2 to display a screen for inputting the search target data and the search condition. Then, when the instruction input of the item to which the search target data belongs and the search target data are input from the input unit 3, the search parameter creation unit 14 starts the item to which the search target data belongs from the item file 6. Get location info, length info, data type info,
Create sort parameters for sorting from search target data. This sort parameter is stored in the parameter file 7.

The search executing means 15 executes a data search for files in the master file 5 based on the sort parameters created by the search parameter creating means 14. That is, a SORT (program related to search and rearrangement) is started in the back partition (starting section), data matching the condition indicated by the sort parameter is searched, the searched data is rearranged, and a search result file (second storage means) 8 Remember.

When the search by the search executing means 15 is completed, the search result editing means 16 obtains the search condition from the sort parameters of the parameter file 7, and according to the search condition, a plurality of searched search results are obtained. Edit. That is, MERGE (AND or NOT, of the previous search result file and the current search result file whose sort parameters are stored in the search result file 8).
In the case of instructing (editing by OR condition), MERGE is performed according to this condition and the result is obtained.

The data processing device realized by the above functional block diagram is actually realized by the computer system shown in FIG. This computer system is a system in which the CPU 20 performs overall control of each unit based on a program and data in the main memory 21. CP
The U31 is connected to the controllers 31 to 35 via the bus 22.
Is connected. A keyboard input device 23, a printer device 24, a mouse 26, a magnetic disk storage device 27, and a CRT display device 25 are connected to each of the controllers 31 to 35, and are configured to perform necessary control for each device. .

The magnetic disk storage device 27 stores the master file 5 shown in FIG. 3 and the item file 6 shown in FIG. 4, and further, the point position (coordinates) designated by the mouse 26 in FIG. 5 and the item information. A memory table 9 corresponding to numbers is stored, and further, a program according to the present invention corresponding to the flowchart shown in FIG. 6 is stored. The program corresponding to the flowchart of FIG. 6 is loaded from the magnetic disk storage device 27 into the main memory 21 and executed when a “SORT” instruction is received from the keyboard input device 23 or the application program.

That is, the program of the flowchart of FIG. 6 is started by the input of the instruction of "SORT", and the image of FIG. 7 is displayed on the CRT display device 25 by this program (S61). This item is C
The PU 20 reads out the name of each item from the item file 6, converts it into display data according to data of a predetermined format, and gives it to the controller 35 to display it. At this time, the operator uses the mouse 26 to input an item to be searched among the items displayed on the CRT display device 25. The CPU 20 receives this designated point position from the mouse 26, detects the item number corresponding to this point position by referring to the memory table 9 in FIG.
Hold. Therefore, the CPU 20 displays an image for inputting data to be searched and search conditions as shown in FIG. In the frame 41 of the screen of FIG. 8, a search character (kanji) string or alphanumeric characters input from the keyboard input device 23, or a packed decimal number is displayed. On the right side of the frame 41, search conditions such as "only", "or", "and", and "exclude" are displayed, and any one of them can be designated and input by the mouse 26. When a search condition other than “only” is input, a frame 42 for inputting other search data is displayed under the control of the CPU 20. In this frame 42, similarly to the above, a search character string or alphanumeric characters input from the keyboard input device 23, or the pack 1
A decimal number is displayed.

In this way, the data to be searched and the search condition are similarly input. When all the search data and search conditions are entered, the operator
Under the control of the CPU 26, the SORT process displayed in the lower left column of the display screen is used to instruct the mouse 26 to display either "ascending" (ascending order) or "descending" (descending order). By doing so, the input of the data to be searched and the search condition is completed.

In the above processing, if the item "address" includes both "corp" and "Katamachi", and the SORT is in the ascending order, the CPU 20 controls the CRT. Display device 2
On the screen of No. 5, as shown in FIG. 9, the search target data and the search condition related to the instruction input are displayed. In addition, a display as to whether SORT should be executed or cancelled appears at the lower right of the screen depending on the search target data and the search conditions. here,
When the operator designates “execute” with the mouse 26,
In the retrieval condition designation fetch of FIG. 6, the CPU 20 fetches the information on the above-mentioned display screen as the retrieval condition and the retrieval data (S62), and creates the sort parameter by referring to the item file 6 (S63).

That is, since the item containing the data to be searched is "address", the CPU 20 extracts the starting position, length and data type of this item "address" from the item file 6. For example, the item “address” is shown in FIG.
As shown in 0, the start position byte is the 10th byte, the length is n kanji, and the data type is kanji (C
H). The data to be searched is shown in FIG.
As shown in Fig. 12, when it is "corp" and has a length of m kanji (2 m bytes because one kanji is 2 bytes), as shown in parentheses on the first line of Fig. 12. , For the address item, the start position is the 10th byte, the data has a length of 6 bytes (3 = 2 bytes from m = 3), it is a Chinese character (CH), and the next character string is A parameter is created that indicates to search for equality (EQ). The hexadecimal notation to the right of "EQ" is the kanji code for the character string "corp." Next, the parameter on the second line indicates the 12th byte with the start position shifted by 2 bytes (one Kanji character), and the other parameters are set in the same manner as on the first line and are ORed. Hereafter, create a similar parameter,
Repeat until (start position + number of significant digits of character string) matches the last byte of the item. In the example of FIGS. 10 and 11,
The parameter creation is repeated (n-m + 1) times. Further, in this embodiment, since the search target data are “corporation” and “Katamachi”, sort parameters are created for “Katamachi” as in the case of “corporation”, and “corporation” is created.
The sort parameter group for searching for the character string of (in FIG. 12) and the sort parameter group for searching for the character string of "Katamachi" are combined by AND to create the sort parameter as a whole.

When the creation of sort parameters is completed as described above, the CPU 20 activates SORT (a program relating to search rearrangement) (S64). As a result, data search is performed for each record of the master file 5 based on the sort parameter. That is,
For each record, a search for “corp” is performed using the sort parameters shown in FIG. At this time, as shown in FIG. 3, in each record of the master file 5, a constant value “21” is set in the constant part of the X-th byte and the Y-byte as shown in REC of FIG. . Therefore, when detecting a record containing "corporation" which is the search target data, the CPU 20 moves the Y-th byte of the constant value to the XY-byte together with the user number and the home terminal number "HTNo" of the record. Then, the current result of the result file 8 is stored in the file 8A. In this way, when the search is completed for all the records in the master file 5, the result file 8A of the result file 8 is stocked with the user numbers of the records including "corp." With this result, C
The PU 20 further detects whether to continue the search based on the sort parameter or the input from the keyboard input device 23 (S66). In this embodiment, since "Katamachi" is the search target data in addition to "Corpo", it is detected that the search is continued. Next, the CPU 20 detects whether sort parameters have been created (S6).
7). If no sort parameters have been created,
The process returns to step S61 and continues. In this embodiment, since the sort parameter for "Katamachi" is created, the processing from step S64 is performed. Then, in step S66, it is detected that the search is not further continued, and the process proceeds to the MERGE process (S68).

In the MERGE process, the result of the search performed for "Corp" is stored in the previous search result file indicated by 8A in parentheses in FIG. 13, and the result of the search performed for "Katamachi" this time is indicated in 8B in parentheses. Since they are stored in the file indicated by, the total is taken at the X-th byte while merging them. This tabulation process is SOR
Since the program of T supports a sub-function called field summation (SUM) for totaling the contents of designated bytes, the CPU 20 performs processing by this sub-function. As a result, when the same data (user number and HTNo) exists in both files, the X-th byte becomes "2" as shown in the result file 8C of FIG. The Xth byte is "2". Extract the data to obtain the final result. At this time, the CPU 20
The rearrangement is performed in ascending order, and the X-th byte of each record is returned to "1" by using the arrange field command (ARR) which is a sub-function other than the above-mentioned field aggregation. As a result, this final result file 8C
However, it is possible to further narrow it down.

That is, the MERGE process (S6 shown in FIG.
In the process of detecting whether to further narrow down, following step 8), the CPU 20 displays an announcement on the CRT display device 25 asking whether to further narrow down or end, and determines which instruction input is made by the mouse 26. It is detected (S69). Here, if further narrowing is selected, the process returns to step S61 to continue the processing. In this case, in the condition input screen display (S61), the start is not from the item selection screen of FIG. 7 but from the target input screen shown in FIG. 8, and the operator selects the target data for narrowing down in the frames 41, 42, Enter ...
It suffices to select a search condition of "only", "or", or "exclude". In this way, even when the narrowed search is performed, MERGE is executed between the previous search result and the current search result, and the final result is obtained, as in the above.

In the above example, the search target data A
Although ND is taken, it is also possible to take OR or NOT. Here, the case where NOT is taken will be described. FIG. 14 shows a processing sequence when a NOT is taken for the previous search result and the current search result. A case where the previous search result is in the file 8D and the current search result is in the file 8E is shown.

When the file of the search result of this time is created, "21" set in the Xth byte and the Yth byte of each record of the master file 5 is transferred to the record of the result file as it is. Then, while performing MERGE on the file 8E in which the search result of this time is stored and the file 8D in which the search result of the previous time is stored, the total is taken at the X-th byte. Also for this aggregation, the field aggregation (SUM) that is the sub-function described above is used. M
The result of applying ERGE is stored in the file 8F. As is clear from the contents of the file 8F, the X-byte is "2" in the case of the search result only this time, the X-byte is "1" in the case of the search result only in the previous time. In the case of, the X-th byte is set to "3". Here, since NOT is an instruction of a process for removing the current search result from the previous search result, the record in the file 8F of the MERGE result is excluded from the records in which the X-th byte is “2” or more, and the final Get results. The final result file is a file indicated by 8G in parentheses, and the final result file can be further narrowed down.

The search result obtained as described above is CR by an instruction from the keyboard input device 23.
It can be displayed on the T display device 25 or output from the printer device 24. In this case, the user number and "HTNo" stored in the search result file as well as the user number and "HTNo" are output.
No ”, all the information of the corresponding records in the master file 5 is read out and made into a list and output.

In the above embodiments, the kanji was used as the search target data, but the data search device of this embodiment can also use alphanumeric characters other than kanji and packed decimal numbers as the search target data. When searching for data having a data type other than Kanji, for example, sort parameters as shown in FIG. 15 are automatically created. The first line of the sort parameter in FIG. 15 indicates that a record in which the start position byte of the key is the i-th byte, the length thereof is the j-byte, and the data type (NCH) is other than Kanji is searched.
In the second line, the start position byte is the 1st byte, the length is 10 bytes, and the data of the item of the data type (NCH) other than Kanji is "1" or more. Show. In the 3rd line, the start position byte is the 1st byte, the length is 10 bytes, and the data of the item whose data type (NCH) is other than Kanji is "50" or less is searched and the 2nd line is searched. It indicates that AND is performed with the search result by the eye parameter. The sorting parameter is
In the example of the master file 5 of FIG. 3, for example, the age is designated as an item, and in the input screen of the search target as shown in FIG. 16, search for a file that is "1" or older and is "50" or younger. This occurs when you instruct to do so. Then, the search process described with reference to FIG. 13 is executed based on this sort parameter, and MERGE based on the search condition is performed with the file of the previous search, and M times of two times are executed.
A file of the final search result is obtained by ERGE. It should be noted that although the above embodiment does not show the OR processing, the file shown by 8C in parentheses in FIG.
Alternatively, the file indicated by 8F in FIG. 14 is used as the search result. And in preparation for further narrowing down, X of each record
Return the byte to "1".

As described above, in the present embodiment, since the data search is performed by SORT, the data search is performed not for all the data in the master file but for the data of the required item, except for the main index of the index organization file. Compared with the case of searching with the item, the time required to trace the key of the tree structure is not required, and the search can be performed at high speed. Further, as compared with the case of the search by the COBOL application, a high-speed search is possible because the data of the required item is searched instead of reading all the data and searching the Kanji field. In addition, editing such as further narrowing down of one search result can be easily realized by using the sub function of SORT.

[0044]

As described above, according to the data retrieving method of the first aspect of the present invention, the start position information, the length information, and the data type information are associated with the items inside the record. From the stored item file, the start position information, length information, and data type information of the item to which the search target data belongs can be obtained.
Sort parameters for performing multiple sorts are automatically created from length information, data type information, and multiple search target data, and data search in the file is performed multiple times based on this sort parameter, and multiple sorts are performed. Since the final result can be obtained by editing according to the search condition from the data search result of the second time, it is possible to search the data at any position in the item, and it is not necessary to create sort parameters and it is easy Data can be searched. Further, it is possible to edit a plurality of searches and obtain search results under necessary conditions.

According to the data search method of the invention described in claim 2 of the present application, regarding the items inside the record,
From the item file in which the start position information, the length information, and the data type information are associated and stored, the start position information, the length information, and the data type information of the item to which the search target data belongs are obtained. , The length information, the data type information, and the search target data are used to create a sort parameter, the data in the file is searched based on the sort parameter, the search result is obtained, and the search result is further narrowed down. In this case, regarding the items inside the record, from the item file in which the start position information, the length information, and the data type information are associated and stored, the start position information, the length information, and the data of the item to which the search target data belongs are stored. Type information is obtained, and sort parameters are calculated from the start position information, length information, data type information, and search target data. Data is created in the file based on this sort parameter, the search results are obtained, and the process of editing the previous search result and the current search result according to the search conditions is performed as necessary. Since it is repeated to obtain the final result, it is possible to retrieve the data at any position in the item, and it is possible to easily retrieve the required data without the knowledge of creating sort parameters. In addition, a plurality of searches can be performed as needed, and the results can be edited to obtain search results under the necessary conditions.

According to the data search apparatus of the third aspect of the present application, when the input of the item to which the data to be searched belongs and the data to be searched are input from the input means,
From the item file, obtain the start position information, length information, and data type information of the item to which the search target data belongs,
A sort parameter for sorting is created from the search target data, data is searched for a file in the first storage means based on the created sort parameter, and a plurality of searched search results are searched. Since the data is edited according to the conditions, it is possible to retrieve the data at any position in the item, and it is possible to easily retrieve the required data without the knowledge of creating sort parameters. Then, a plurality of search results can be edited and narrowed down according to necessary conditions.

According to the data search apparatus of the fourth aspect of the present application, the constant part is set in the file in the first storage means, and the search result editing means uses the constant part according to the search condition. Since the editing is performed, the editing can be accurately performed by the number of constant parts.

According to the data retrieving apparatus of the fifth aspect of the present application, the start position information, the length information, and the data type information are extracted from the file in the first storage means to extract the items and Since the items are registered in the item file in association with each other, the information for creating the sort parameter is registered in the item file, and the sort parameter can be automatically created.

According to the data retrieval apparatus of the sixth aspect of the present application, the data inputted from the input means is filed and registered in the first storage means. Therefore, the file of the retrieval target data is stored in the first storage means. Will be remembered.

According to the data retrieving apparatus of the seventh aspect of the present application, since the second storage means for storing the retrieval result retrieved by the retrieval executing means is provided, the retrieval results of a plurality of times are stored. It can be stored, which is advantageous for editing search results.

According to the data retrieving apparatus according to the eighth aspect of the present application, since the output means for outputting the retrieval result is provided, it is possible to output the retrieval result when necessary and use it.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a data search device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a data search device according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of a master file included in the data search device according to the embodiment of the present invention.

FIG. 4 is a diagram showing an example of an item file included in the data search device according to the embodiment of the present invention.

FIG. 5 is a diagram showing an example of a memory table for associating designated positions with item numbers with pointing devices provided in the data search device according to the embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the data search device according to the embodiment of the present invention.

FIG. 7 is a diagram showing a display example of an item selection screen in the data search device according to the embodiment of the present invention.

FIG. 8 is a diagram showing a display example of a target input screen in the data search device according to the embodiment of the present invention.

FIG. 9 is a diagram showing a display example of a confirmation screen in the data search device according to the embodiment of the present invention.

FIG. 10 is a diagram showing an example of a character string of an address in a record in the data search device according to the embodiment of the present invention.

FIG. 11 is a diagram showing an example of a search target character string in the data search device according to the embodiment of the present invention.

FIG. 12 is a diagram showing an example of sort parameters automatically created by the data search device according to the embodiment of the present invention.

FIG. 13 is a diagram showing a processing sequence in the case where the previous search result and the current search result are ANDed in the data search device according to the embodiment of the present invention.

FIG. 14 is a diagram showing a processing sequence in a case where the data search device according to the embodiment of the present invention performs a NOT on the previous search result and the current search result.

FIG. 15 is a diagram showing another example of sort parameters automatically created by the data search device according to the embodiment of the present invention.

FIG. 16 is a diagram showing a display example of a target input screen that causes another example of the automatically created sort parameter.

[Explanation of symbols]

1 Processing Unit 2 Display Means 3 Input Means 4 Print Output Means 5 Master File (First Storage Means) 6 Item File 7 Parameter File 8 Search Result File 9 Memory Table 11 Display Control Means 12 Registration Control Means 13 Item Registration Means 14 Search Parameter creating means 15 Search executing means 16 Search result editing means 20 CPU 21 Main memory 22 Bus 23 Keyboard input device 24 Printer device 25 CRT display device 26 Mouse 27 Magnetic disk storage device 31-35
controller

Claims (8)

[Claims] 1. An item file in which start position information, length information, and data type information are associated and stored with respect to items inside a record, and start position information, length information of an item to which search target data belongs, After obtaining the data type information, these start position information, length information, data type information,
Create a sort parameter to sort multiple times from multiple search target data, perform data search in the file multiple times based on this sort parameter, and edit the data search results of multiple times according to the search conditions. A data retrieval method characterized by obtaining a final result as a result. 2. An item file in which start position information, length information, and data type information are associated and stored with respect to items inside a record, and start position information, length information of an item to which search target data belongs, After obtaining the data type information, these start position information, length information, data type information,
When a sort parameter is created from the search target data, the data in the file is searched based on this sort parameter, the search result is obtained, and when further narrowing down this search result, the start position of the item inside the record The start position information, the length information, and the data type information of the item to which the search target data belongs are obtained from the item file in which the information, the length information, and the data type information are associated and stored. Information, data type information,
Create a sort parameter from the search target data, perform a data search in the file based on this sort parameter, obtain the search result, and edit the previous search result and the current search result according to the search conditions. A data search method characterized by obtaining the final result by repeating the process as necessary. 3. Start position information, length information, and data type information are associated with the first storage means in which a file of search target data is stored and the items inside the record of the first storage means. Control so that the stored item file, input means for inputting data, display means for displaying data, and screen display for inputting search target data and search conditions are displayed on the display means. Display control means for performing, and when the input of the item to which the search target data belongs is input from the input means and the search target data is input, the start position information of the item to which the search target data belongs from the item file , Get length information, data type information,
Search parameter creating means for creating a sort parameter for sorting from the search target data, and a data search is performed for a file in the first storage means based on the sort parameter created by the search parameter creating means. And a search result editing unit that edits a plurality of search results searched by the search executing unit according to a search condition. 4. The data according to claim 3, wherein a constant part is set in the file in the first storage means, and the search result editing means uses the constant part to edit according to a search condition. Search device. 5. An item registration means for extracting start position information, length information, and data type information regarding an item inside a record from a file in the first storage means, and registering the extracted information in the item file in association with the item. The data search apparatus according to claim 3, wherein the data search apparatus is provided. 6. The registration control means for registering the data input from the input means as a file in the first storage means and registering the data in the first storage means. Data retrieval device. 7. The data search apparatus according to claim 3, further comprising a second storage unit for storing the search result searched by the search execution unit. . 8. The data search device according to claim 3, further comprising output means for outputting a search result.