JPH04245552A - Data base retrieving method - Google Patents

Abstract

PURPOSE:To omit a troublesome case where the communication charge and the service charge are paid at each time by retrieving a data base of the terminal side at input of the retrieving data, displaying the corresponding data if detected, and asking a data base of the host computer side to retrieve the corresponding data if not detected and then registering additionally the retrieving result into the data base of the terminal side. CONSTITUTION:A data terminal registers additionally the data to a data base of the terminal side every time the retrieving result of the data base is received from a host computer. When a retrieving sentence is inputted from a terminal, a retrieving means 33 retrieves the data base of the terminal side end displays the corresponding data if detected on a display device 2. If the corresponding data is not detected, a communication means 5 asks the host computer to retrieve the data. This retrieving result is additionally registered into the data base of the terminal side. Thus it is possible to omit such a trouble case where the communication charge and the service charge are paid at each time.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a database search method performed by a data communication terminal connected via a communication line to a host computer having a database search service.

0002

[Background Art] Conventionally, when using a database search service using a data communication terminal, the data to be searched is sent from the terminal to the host each time, the host searches the database, and the results are sent to the terminal. The method was to receive it from the side. On the other hand, there is also a method of having a local database on the terminal side and searching it without using any communication means with the host computer.

0003

[Problems to be Solved by the Invention] However, with the conventional technology, even when searching for the same data at different times, the data is searched through communication with the host computer, which results in communication charges and database service charges each time. I had to pay. However, it is not only uneconomical for each terminal to have its own large-capacity database, but also makes processing such as updating data troublesome.

0004

[Means for solving the problem] Every time a data terminal receives database search results from a host computer, the data is additionally registered in the database on the terminal side, and when a search sentence is input from the terminal, the data is first registered on the terminal side. If the database is searched and found, the relevant data is displayed; if not found, a search request is sent to the host computer via communication means, the results are received, and the results are also additionally registered in the database on the terminal side. .

[0005]

[Example] FIG. 1 is a configuration diagram when implementing the present invention,
1 is a data input device for inputting search information. 2 is a display device for displaying input search information, search data, etc., and has a memory for storing data to be displayed. 3 is a control device, for example, when realized by program control,
The control procedure shown in FIG. 2 is stored and executed by a processor, and further includes a working memory in which search data and search result data are stored and read. When divided by function, it can be divided into the following five categories. First, 31 is input data reading control means. 32 is a processing control means that executes the control procedure shown in FIG.
Issue instructions to each method and receive results. Reference numeral 33 denotes a database search control means which searches or registers the database formed in the storage device 4 according to instructions from the processing control means.

34 is a communication control means that communicates with the host computer according to instructions from the processing control means, accesses an external database via the host computer,
Read the searched data related to the search data. 35 is a result data display control means, which sends search information and search results to the display device 2 according to instructions from the processing control means, and displays them there. 4 is a storage device that forms a database held by the terminal that stores telephone numbers using keywords such as names and addresses, and reads and writes data from the database according to instructions from the processing control means. to do. 5 is a communication device for receiving data from the database via the host computer.

FIG. 2 is a flowchart of an algorithm for processing control according to the present invention, which is executed by the input data reading means, processing control means, database search means, and communication control means in the control device 3 of FIG.

Based on the above configuration, a database search service for telephone directory information will be explained with reference to the flowchart of FIG. 2 as an example. In this directory assistance, the entered name and address are searched and matched phone numbers are displayed. First, when the input data reading means 31 detects that a search sentence (name and address) has been input from the input device 1, it passes the search sentence to the processing control means 32. The processing control means 32 analyzes this search sentence and sends it to the database search means 33.
Request a search by name and address in the terminal's database. The database search means 33 notifies the processing control means 32 whether or not the corresponding telephone number has been found as a result of searching the storage device 4. When the processing control means 32 finds a corresponding telephone number, it passes it to the result data display means 35, and the result data display means 35 displays the telephone number on the display device 2. In this case, if the search result is not from an external database, for example, the external database can be displayed together with the access time data.
You can understand the freshness of the data and understand that it is not information from an external database. If the corresponding telephone number is not found, the processing control means 32 requests the communication control means 34 to search the database on the host computer side. The communication control means 34 transmits a search statement to the host computer through the communication device 5, and receives the database search result (telephone number or not applicable) from the host computer. The communication control means 34 passes the telephone number corresponding to this search to the processing control means 32. The processing control means 32 requests the database search means 33 to add the telephone number data, name and address data to the database, and
The database search means 33 stores data to be additionally registered in the storage database. At this time, the current time of access is also registered in the memory.

The processing control means 32 requests additional registration to the database search means 33 and displays the result data display means 3.
The resulting telephone number is passed to 5 and displayed on display device 2.

When searching for additionally registered contents, first search the storage device 4 as described above, and if the contents are there,
Since the content is processed to be displayed, opportunities for searching external databases can be reduced.

[0011] Furthermore, in order to enable the operator of the terminal to decide whether or not to additionally register the search results, an input means for the additional registration operation may be provided, and additional registration may be performed based on instructions from the input means. good.

In the above configuration, an example of program control is shown, but each block shown in FIG. 1 may be realized by wired logic.

[0013]

[Effects] By configuring the present invention as described above, the database search result data once obtained through communication with the host computer can be obtained from the next time through processing only on the terminal side, so communication charges and database retrieval data can be obtained from the next time. You no longer need to pay service fees. moreover,
In the present invention, the processing control means determines and executes whether to search the database on the terminal side or the database on the host computer side, so the operator needs to be aware of which database the data he wants to see is located. do not have.

[Brief explanation of the drawing]

[Figure 1] Configuration diagram when implementing the present invention

[Figure 2] Flowchart of the algorithm for processing control according to the present invention

[Explanation of symbols]

1 Data input device 2 Display device 3 Control device 4 Storage device 5 for storing the database held on the terminal side Communication device 31 for receiving data from the host
Input data reading 32 Processing control means 33 Database search means 34 Communication control means 35 Result data display means

Claims (1)

[Claims] Claim 1: A system comprising a data input device, a data display device, a storage device for storing a database, a communication device for receiving data from a host computer, and a control device for controlling them. When input is entered, a search is first performed against the database on the terminal side, and if the corresponding data is found, it is displayed, and if no data is found, the search is performed against the database on the host computer side using the communication device. A database search method characterized by making a request and displaying the result, and additionally registering data received from a database on a host computer side into a database on a terminal side on the spot.