JPH01121985A - Cyclic range system - Google Patents

Abstract

PURPOSE:To divide data generated time-serially and to store them into ranges corresponding to range values concerned by providing a range shadow means and a range switching means and using ranges in circulation. CONSTITUTION:In order to distinguish ranges, a range defining means 1 is used and a dividing rule is defined to a data holding means 6. When the data generated time-serially are about to be stored into the means 6 by a data operating means 5, the means 6 divides the data by referring the dividing rule based on the relevant year and the relevant month of a data record and stores them into the ranges corresponding to the range values. When the data of a new year January is about to be stored into the means 6, the data becomes a range value unable to be divided by the dividing rule, therefore, a range shadow means 2 is activated and the data of the last year January on a range #1 are made unable to be used. Next, a range switching means 3 is activated and the dividing rule is rewritten so that the range value of the range #1 is updated from the last year January to the new year January.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cyclic range method, and more particularly to a cyclic range method in a file management system such as a database system that handles data that occurs in time series.

[Conventional technology]

Conventionally, this type of range method divides data into multiple range values based on predefined division rules, and then stores and maintains the divided data in multiple ranges corresponding to the multiple range values. For example,
A case in which data is stored and held in a plurality of ranges using the conventional range method will be explained in detail with reference to FIG. 4 as follows.

+11 First, the range definition means 41 stores data having a range value from A to H in the range #1 of the data holding means 43, and stores data having a range value from ■ to P in the data holding means 43. Stored in range #2 and the range value is Q
A division rule is defined in which data having a value of X is stored in range #3 of the data holding means 43.

(2) Next, when storing data having a range value from A to H in the data holding means 43 by the data manipulation means 42, the data is stored with reference to the division rule defined by the range definition means 41. The data is divided and stored in range #1 having the corresponding range value of the data holding means 43.

(3) Also, the range value is changed by the data operation means 42.
When storing data having a value of P from
Store in range #2 with a corresponding range value of 3.

(4) Furthermore, when storing data having a range value from Q to and stores it in range #3 having the corresponding range value of the data holding means 43.

[Problem that the invention seeks to solve]

In the conventional range method described above, data is divided into multiple range values based on predefined division rules and stored in ranges corresponding to the range values.
Data that occurs in time series may exceed multiple temporal range values based on predefined division rules, and in such cases, the data cannot be divided and stored in ranges, which is a disadvantage. be.

In view of the above points, an object of the present invention is to use ranges cyclically to ensure that data generated in time series is divided into a plurality of temporal range values and stored in ranges corresponding to the range values. The objective is to provide a cyclic range method that can

[Means for solving problems]

The cyclic range method of the present invention is a file management system that divides data into multiple range values and stores and holds the divided data in multiple ranges that respectively correspond to the multiple range values. a range definition means for defining a division rule for dividing the data to be divided into a plurality of temporal range values and storing the data in the plurality of ranges; data holding means for dividing generated data into the plurality of range values and storing and holding the divided data in the plurality of ranges; and data manipulation means for operating the data held in the plurality of ranges by the data holding means. and, when data exceeding the range value based on the division rule defined by the range definition means is generated, the division rule defined by the range definition means is rewritten without increasing the number of ranges in the data holding means. The present invention includes a range switching means for circulating and reusing the range, and a range shadowing means for making old data on the range switched and reused by the range switching means unusable.

[Effect]

In the cyclic range method of the present invention, the range definition means defines a division rule for dividing data generated in time series into multiple temporal range values and stores the divided data in multiple ranges, and the data storage means The data generated in time series is divided into multiple range values based on the division rules defined by the definition means and stored and held in the multiple ranges, and the data manipulation means is held in the multiple ranges by the data storage means. When an operation is performed on the data and the range switching means generates data that exceeds the range value based on the division rule defined by the range definition means, the range switching means rewrites the division rule defined by the range definition means and stores the data in the data holding means. Circulate and reuse microwaves without increasing the number of microwaves,
The range shadow means is switched by the range switching means to make old data on the range to be reused unusable.

〔Example〕

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

FIG. 1 is a block diagram showing a file management system to which a cyclic range method according to an embodiment of the present invention is applied. This file management system consists of a range definition means 1 that defines division rules for dividing data into multiple range values and storing them in multiple ranges, and old data on the range that is the target of switching when switching ranges. a range shadow means 2 that makes the range unusable; a range switching means 3 that rewrites the division rule defined by the range definition means 1 and circulates the range to reuse the range; A range file expansion means 4 dynamically expands the file capacity of the range when the data stored in the range overflows the range, and performs operations such as reference, addition, and replacement on the data held in the range. Data manipulation means 5 and data storage that divides the data based on the division rule defined by the range definition means 1 and stores and holds the divided data in a plurality of ranges #1 to #n (n is a positive integer). means 6.

Referring to FIG. 2, an example of a data record 20 of data generated in chronological order handled by the cyclic range method of this embodiment includes a corresponding year 21, a corresponding month 22, and data 23 generated in the corresponding month. It is composed of:

Next, the operation of the cyclic range system of this embodiment configured as described above will be explained. In addition, here, as shown in Figure 3, the data is divided into monthly range values.
12 ranges corresponding to months from March to December #
The case where the data is stored and held in #1 to #12 will be explained as an example.

(11 Before storing data in the data holding means 6 using the range definition data manipulation means 5, in order to distinguish the range where the data is stored, use the range definition means 1 to store the data in a plurality of range values. A division rule for dividing and storing in a plurality of ranges is defined in the data holding means 6.

For example, in order to distinguish the range in which data is stored by month, the range definition means 1 is used to divide the data into monthly range values based on 8, current year 21 and corresponding month 22 of data record 20. A division rule is defined in the data holding means 6 to store data in 12 corresponding ranges #1 to #12 from January to December.

(2) Data manipulation When data generated in chronological order is to be stored in the data holding means 6 using the data manipulation means 5, the data holding means 6 stores the data in the corresponding year 21 and the corresponding month 22 of the data record 20. Based on the division rules defined in the data holding means 6, the data is divided, and the divided data is stored in the range corresponding to the range value.

For example, data that occurred in January 1986 (corresponding year 21 of data record 20 is 1986, corresponding month 22 is 1
When attempting to store the data (data each indicating a month) in the data holding means 6 using the data manipulation means 5, the data is stored and held in range #1 whose range value is January based on the division rule.

Hereinafter, whenever data is generated on a monthly basis, if you try to store that data in the data holding means 6 using the data manipulation means 5, the data will be stored and held in each range whose range value is the corresponding month 22. be done.

Furthermore, when an attempt is made to use the data manipulation means 5 to perform an operation such as reference, addition, or replacement on the data L held in the data holding means 6, the data holding means 6 is Perform these operations on a range-by-range basis by referring to the dividing rules.

Note that the data manipulation means 5 is used to refer to and add to the data held in the data holding means 6.

When performing operations such as direct conversion, the data is manipulated in units of ranges based on the division rules defined in the data holding means 6, so there is no need for the operator to be aware of ranges.

Furthermore, if the data manipulation means 5 is used to perform operations such as addition or replacement on the data held in the data holding means 6, the file capacity of the range may be exceeded.
In such a case, the range file expansion means 4 is activated to automatically dynamically expand the file capacity of the corresponding range.

(3) Circulating range use: For a while, the data generated in chronological order is stored in ranges #1 to #12 of the data storage means 6 by the data manipulation means 5, and data for January of the new year is generated after the corresponding year 21. In this case, when you try to store the data for January of the new year in the data holding means 6, the data for January of the new year falls within the range in which the corresponding year 21 of the data record 20 cannot be divided according to the division rules defined in the range holding means 6. Therefore, the range shadow means 2 is first activated, and the data of January of the old year on range #1 whose range value is January of the old year is made unusable. Next, the range switching means 3 is activated and the division rule defined in the data holding means 6 is set to range #1.
is rewritten so that the range value is from January of the old year to January of the new year. Thereby, the data holding means 6 can store the data for January of the new year requested to be stored by the data manipulation means 5 in the corresponding range #1.

For example, if data for January 1987 is generated after data from January to December 1986 is stored in the data holding means 6 using the data manipulation means 5, data for January 1987 is generated using the range shadow means 2. The data for January 1986 stored in range #1 whose range value is January 2016 is deemed unusable, and the dividing rule defined in the data holding means 6 using the range switching means 3 is changed to range #1. The range value of 1 is rewritten to be from January 1986 to January 1987, and the data for January 1987 is in range #l.
is stored in

Subsequently, when trying to store data generated after February of the new year in the data holding means 6, the range shadow means 2 is used to store the old data on the range whose range value is the corresponding month 22 after February of the old year. is rendered unusable, the range value of the range to which the division rule defined in the data holding means 6 applies is rewritten from the same month of the old year to the same month of the new year using the range switching means 3, and the data is changed to the same month of the new year. It is stored in the range that is the range value.

In addition, in an attempt to store data for the same month of the new year in the data holding means 6 using the data manipulation means 5, I rewrote the division rule defined in the data holding means 6 using the range switching means 3, but the data If writing exceeds the file capacity of the range, the range file expansion means 4 is activated to automatically dynamically expand the file capacity of the range.

By the way, in the explanation of the operation of the above embodiment, the data is divided into monthly range values and 12
Although the explanation has been given using an example where the data is stored and held in ranges #1 to #12, the present invention can be similarly applied to other temporal units such as two weeks of the year's flower level. Needless to say.

〔Effect of the invention〕

As explained above, the present invention provides a range shadow means and a range switching means so that the range can be used cyclically, so that data generated in a time series can always be converted into a plurality of temporal range values. This has the advantage that it can be divided into sections and stored in the range corresponding to the corresponding range value.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a file management system to which the cyclic range method of an embodiment of the present invention is applied; FIG. 2 is a diagram showing an example of data records handled by the cyclic range method of the present embodiment; FIG. 3 is a diagram showing a specific example of the data holding means in FIG. 1, and FIG. 4 is a block diagram showing a conventional range system. In the figure, ■...Range definition means, 2...Range shadow means, 3...Range switching means, 4...Range file expansion means, 5...Data operation means, 6...Data retention Means, 20... Data record, 21... Applicable year, 22... 8 This month, 23... Data that occurred in the applicable month.

Claims (1)

[Claims] A file management system that divides data into a plurality of range values and stores and holds the divided data in a plurality of ranges that respectively correspond to the plurality of range values. a range definition means for defining a division rule for dividing by a plurality of temporal range values and storing it in the plurality of ranges; and data generated in the time series based on the division rule defined by the range definition means. data holding means that divides the data into the plurality of range values and stores and holds the divided data in the plurality of ranges; data manipulation means that operates on the data held in the plurality of ranges by the data holding means; When data exceeding the range value based on the division rule defined by the range definition means is generated, the division rule defined by the range definition means is rewritten and the ranges are cycled without increasing the number of ranges in the data holding means. A cyclic range method comprising: a range switching means for switching and reusing old data on the range, and a range shadowing means for making old data on the range switched and reused by the range switching means unusable.