JPH02268542A - Inter-generation information succeeding system for data base - Google Patents

Abstract

PURPOSE:To guarantee the successiveness of the content of a new data base and to prevent a serviceability from being lowered by detecting the content of an added, deleted, or changed data base while an old data base is switched after it is stored as a data base difference, and generating input data for update. CONSTITUTION:The new data base is generated based on a new system file for update and the content of the data base in operating stored in a first external storage means, and the difference of the content in operating of the data base just before and that in operating of the data base stored in the first external storage means is stored in a second external storage means. After a system file and the data base are updated, the difference stored in the second external storage means is attached on the content in operating as the new data base, then, the new data base is updated. In such a way, it is possible to guarantee the successiveness of the content of the new data base according to the switching of the system file and to prevent the serviceability for an end user from being lowered.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an intergenerational information inheritance method for a database, and more particularly to an intergenerational information inheritance method for a database accompanying system file replacement in a storage program controlled communication system.

[Conventional technology]

The conventional database generation information inheritance method outputs the database contents of both generations on paper as a list, and then a human compares the two on a desk. If a difference is detected between the two, it is necessary to fill in the difference. Humans think of ways to
After that, the method used was to input commands to the communication system operating with the new generation database and perform database correction work.

[Problem to be solved by the invention]

The conventional database generation information inheritance method described above is
In order to verify whether information is correctly inherited between generations of databases due to the replacement of system files in communication systems, the contents of the databases of both generations were printed out on paper using a typewriter, etc. Humans were comparing the two lists provided. If a difference was found, the difference between the two was extracted, and this difference was manually input into the communication system in operation using a new generation database. For this reason, errors that occur due to manual work, such as overlooking differences, omitting changes, and making mistakes in input instructions, may enter the database, and the inheritability of the database contents cannot be completely guaranteed. There is a problem.

In addition, it takes time to collate a large amount of data, and even after replacing system files, it takes time to make the contents of the database the same as before the replacement.
There is also the problem that service to end users deteriorates.

An object of the present invention is to prevent databases that have been added, deleted, or changed between the time of recording the old database that became the basis for creating a new database and the time of replacement when replacing system files of a storage program-controlled communication system. The communication system itself detects the content as a database difference by comparing it and generates input data for updating, thereby ensuring the inheritability of the content of the new database when the system files of the communication system are replaced when service functions are expanded. An object of the present invention is to provide an intergenerational database information inheritance method that can guarantee and prevent service degradation for end users.

[Means to solve the problem]

The intergenerational database information inheritance method of the present invention is applied to a stored program controlled communication system that enables expansion of service functions by updating the database provided for each system as system files are changed. Storing the contents of the database during operation, which are the basis for updating the database, in a first external storage means, and operating a new system file for updating and the database stored in the first external storage means. A new database is created based on the contents therein, and the contents of the database in operation immediately before the database is replaced with a new one, and the contents of the database in operation stored in the first external storage means. the difference stored in the second external storage means after updating the system file and the database into the new system file and the new database, the difference stored in the second external storage means as the new database; The configuration is such that the new database is updated by adding the contents currently in use.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram when a communication system according to an embodiment of the present invention is used as an exchange system.

The communication system 1 accommodates end user terminals 2 in a replacement switch 3. The replacement switch 3 is connected to and controlled by a central control device 5 via a switch control device 4.

The central control device 5 sends and receives signals to and from the end user terminal 2 via the exchange switch 3 and the switch control device 4. The central control device 5 also has an interface device 6.
It is connected to the maintenance and operation terminal 8 via the interface device 7, and to an external storage device via the interface device 7. At the same time, the central control device 5 has an internal storage device 10 that stores communication system storage programs and databases used for normal operation.
is connected to. The maintenance person gives instructions regarding the operation of the communication system and maintenance activities by inputting messages from the maintenance operation terminal 8. The external storage device 9 is
When outputting the contents of the database currently in operation, inputting it for comparison with the contents of the database in operation immediately before replacement, outputting the database difference that is the result of the comparison, and outputting the contents of the database currently in operation. Used to add database differences to the latest database. Upon receiving the message input by the maintenance person, the central control device 5 replaces the contents of the file read from the external storage device 9 with the internal storage device 10 or updates the database read from the external storage device 9 according to specified conditions. It has a function of comparing the contents with the contents of the database currently in operation, extracting database difference data, writing it to the external storage device 9, and using it as input data for changing the database.

Next, the operation will be explained.

FIG. 2 is a data flow diagram of one embodiment of the present invention.

In a storage program controlled communication system, when the database needs to be updated to expand service functions, the contents of the database currently in operation are transferred to the external storage bag W9 at the first point in time (hereinafter referred to as 5T-1). Output. 5T
- The operational database recorded in step 1 is
”.

Database A is the basic data for updating the database, and step (hereinafter referred to as S) 1
Create a new database with . This newly created new version database is named "database B." At the same time, at 82, a new system file is also being created. This newly created new system file is named "system file C." Next, at a second point in time (hereinafter referred to as 5T-2) immediately before replacing system file C and database B with those currently in operation, database A is input to communication system 1 in operation. , 5T-1 and 5T-2, and includes the added, deleted, or changed database contents inputted in step 83, the difference from the database currently in operation is extracted as input data for database modification. This extracted database difference data is named "Database difference DJ".
At the point in time (hereinafter referred to as 5T-3), the system file C
and database B are replaced with the ones currently in operation. Once the file replacement is completed, the previously extracted database difference is input into the communication system 1, and the database is updated at the fourth point in time (hereinafter referred to as 5T-4) when the database update is completed. , the communication system 1 is now in operation with a new file having a database equivalent to that of 5T-2, and service continuity is guaranteed.

Although the present invention has been described above as an example in which the present invention is applied to an exchange system, the present invention can also be applied to communication systems or computer systems other than exchange systems.

〔Effect of the invention〕

As explained above, the present invention provides for adding, deleting, or The communication system itself checks the changed database contents to detect them as database differences, and generates update input data to update the contents of the new database when the communication system's system files are replaced when service functions are expanded. This has the effect of ensuring the inheritance of the data and preventing a decline in service to end users.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a communication system according to an embodiment of the present invention, and FIG. 2 is a data flow diagram of an embodiment of the present invention. 1...Communication system, 5...Central control unit, 9...External storage device, 10...
Internal storage. Agent Patent Attorney Susumu Uchihara J Figure 2

Claims (1)

[Claims] In a storage program controlled communication system that enables expansion of service functions by updating a database provided for each system in conjunction with changes in system files, the database serves as the basis for updating the database. A new system file for updating and a new database are created based on the current contents of the database stored in the first external storage means. , storing in a second external storage means a difference between the contents of the database in operation immediately before replacing the database with a new one and the contents of the database in operation stored in the first external storage means; , after updating the system file and the database into the new system file and the new database, the difference stored in the second external storage means is added to the content currently in operation as the new database to create the new database. An intergenerational information inheritance method for databases that is characterized by updating.