JPH04142659A - Summary system by data conversion - Google Patents

Abstract

PURPOSE:To improve the generality of a summary system by providing a conversion means that extracts data and a preconversion key, that refers to a contrast table to convert only the preconversion key into a postconversion key an accordance with a conversion master, and that uses the postconversion key as input data after conversion. CONSTITUTION:The present summary system is provided with a conversion means 3 that extracts data and a preconversion key, that refers to a contrast table to convert only the preconversion key into a postconversion key in accordance with a conversion master 2, and that uses the postconversion key as input data after conversion, Further, preconversion data 1 converts the key section by the conversion master 2 to output the converted data 4, and the conversion master 2 has both the preconversion key and the postconversion key. That is, the input preconversion data 1 consists of two divisions of key and data and is treated as input data. Accordingly, from the conversion means 3 the post conversion data 4 is obtained in accordance with the preconversion data. With this, only by changing the conversion master 2 various different summary can be executed without changing program.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to an aggregation method based on data conversion, and in particular, to a data conversion method that does not affect subsequent processing even if the aggregation key of the aggregation system is changed. This invention relates to an aggregation method using data conversion in which key conversion is performed by a master.

[Conventional technology]

Conventionally, in this type of data aggregation method, the key items in the data were aggregated by a program, so each time the key data was changed, the program was rewritten to perform the aggregation.

[Problem to be solved by the invention]

The computer-based data aggregation system described above has the disadvantage that if the key data for aggregation changes, the program must be rewritten to match that key data. The drawback was that a program had to be created.

[Means to solve the problem]

The aggregation method by data conversion of the present invention includes a conversion master consisting of a comparison table of pre-conversion keys and post-conversion keys, extracts data and the pre-conversion key, refers to the comparison table, and performs the conversion before the conversion according to the conversion master. and an exchange means for converting only the key into a converted key and using it as converted input data.

〔Example〕

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

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. A portion of the pre-conversion data 1 is converted by a conversion master 2 and output as post-conversion data 2. Further, the conversion master 2 is in a format having a key before conversion and a key after conversion.

That is, the input pre-conversion data 1 consists of two parts, a key and data, and is treated as input data. In the data part of the data before conversion, 10.15, 5, 5, 12
,8.3, and the keys for conversion are A, respectively.
A, B, BC, D, and referring to conversion master 2,
The key arrangement after these conversions is A, A, B, BE. Therefore, from the conversion means 3, according to the pre-conversion data, the key arrangement is A, A, B, B, B, as in the post-conversion data 4.
E, and the data array is 10.15, 5, 12, 8,
3. The order is as follows.

In this way, the converted data can be obtained. Therefore, by simply changing the conversion master 2, different aggregations can be performed without changing the program.

〔Effect of the invention〕

As explained above, the present invention does not require program modification even if the aggregation key changes, and can be performed simply by modifying the key conversion master when performing different aggregation, making it possible to create a highly versatile system. can be made.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an aggregation method based on data conversion according to the present invention.9 1... Data before conversion, 2... Conversion master, 3...
Conversion means, 4...data after conversion.

Claims (1)

[Claims] A conversion master consisting of a comparison table of pre-conversion keys and post-conversion keys, extracting data and the pre-conversion keys, referring to the comparison table and converting only the pre-conversion keys to post-conversion keys according to the conversion master. An aggregation method by data conversion, characterized by comprising a conversion means for converting input data.