JP2004110319A - Data migration method and data migration system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data migration method and a data migration system capable of easily migrating data from a database of a former system to a database of a new system without providing a business holiday by improving efficiency in processing to be required to migrate the data. <P>SOLUTION: Each time of completing the window-service, automatic teller service and daily service to be done under the regulation of time, the only data groups X, Y and Z, of which operation for change become unnecessary when the corresponding service is completed, are extracted from the database of the former system 1, and registered in the database of the new system 3 to start the processing to be required to migrate the data without waiting for completion of the daily service (a service to be completed finally) during the operation of the former system 1. The time possible to be used for migrating of data is thereby practically increased, and the data migration processing from the former system 1 to the new system 3 is completed till the following service starting time. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in a data migration method and a data migration system for migrating the contents of a database storing data used in a plurality of tasks performed at a regulated time to another newly prepared database.
[0002]
[Prior art]
Examples of the processing system including a plurality of operations performed by regulating the time are, for example, various types of processes such as opening and canceling accounts performed by a financial institution such as a bank, processing of depositing and withdrawing money, and being performed at the end of one day's business. Various internal treatments and the like are known.
[0003]
In general, processes related to opening a new account or closing a contract (window business) are restricted in time, for example, until 3:00 pm, and the handling of money after that time is restricted by cash dispensers and the like. As processing (automatic machine work) performed using the automatic machine, the time can be regulated and allowed, for example, until 6 pm in the afternoon. At the end of one day's business, internal processing (daily business) such as checking the balance of money inside the bank may be performed.
[0004]
In general, data such as customer account information and cash payment history are managed mainly by the customer regardless of the type of business such as window business, automatic machinery business, and daily business. A variety of data as described above is centrally registered in one database through an account number or the like.
[0005]
When updating a system used by a financial institution, etc., as a method for migrating the contents of a database used in the past to another newly prepared database, for example, in a database of a new system, use a conventional service In addition to handling existing data, the new system allows the handling of data used by newly added services, while the old system database only allows the handling of data used by legacy services. Thus, a data migration method (see Patent Document 1) in which the old system is gradually switched to the new system is known.
[0006]
Also, the database of the old system may be migrated to the database of the new system at a certain point in time, and then the differences of the changes made in the database of the old system may be sequentially migrated to the database of the new system. A data migration method (see Patent Document 2) is also known.
[0007]
[Patent Document 1]
JP-A-58-94045
[Patent Document 2]
JP-A-4-243737
[0008]
[Problems to be solved by the invention]
However, in each of the above-mentioned conventional techniques, it is necessary to collectively migrate the database of the old system to the database of the new system at a certain point in time. Even if you have started, the data transfer process to the database of the new system may not be completed by the business start time of the next day, and if you do not set a business suspension date etc. in advance, it will hinder business There was a problem.
[0009]
[Object of the invention]
Therefore, an object of the present invention is to eliminate the drawbacks of the above-mentioned conventional technology, to streamline the processing required for data migration, and to convert from the database of the old system to the database of the new system without providing a business suspension date. An object of the present invention is to provide a data migration method and a data migration system that can easily migrate data.
[0010]
[Means for Solving the Problems]
The data migration method of the present invention is a data migration method for migrating the contents of a database storing data used in a plurality of tasks performed with time regulation to another newly prepared database, In order to achieve the object, in particular, at the end of each task, only data that no longer requires a change operation at the end of the task is extracted from the database in use, and the extracted data is stored in the another database. It has a configuration characterized by registration.
[0011]
At the end of each task, data that no longer needs to be changed at the end of the task is sequentially extracted from the database in use and registered in another database. The process required for data migration can be started while the old system is running without waiting. As a result, the time available for migrating data from one database in use to another is substantially increased, and the old system's database is replaced by the new system by the next business day. It is possible to complete the process of migrating data to the database.
[0012]
Furthermore, the structure of the data extracted from the database in use may be processed and edited according to the data storage structure of another database, and then registered in another database.
[0013]
By applying such a configuration, it is easy to increase the type of data to be used or to increase the storage capacity allocated to each data in order to update the system and provide a new service. Can be dealt with.
[0014]
The data migration system of the present invention is a data migration system for migrating the contents of a database that stores data used in a plurality of tasks performed by regulating the time to another newly prepared database, In order to achieve the same purpose as above, definition information storage means for storing the type of data that does not require a change operation at the end of each task in association with each task, and Data extraction means for referring to the definition information storage means and extracting only the data corresponding to the completed task from the database in use; and data registration means for registering the data extracted by the data extraction means in the another database And a configuration characterized by comprising:
[0015]
In the above configuration, the correspondence between the type of data that does not require a change operation at the end of each task and the task is stored in the definition information storage unit in advance.
The data extraction unit refers to the definition information storage unit at the end of each of the operations, and uses only the data corresponding to the completed operation, that is, the data in use only at the time when the change operation is unnecessary. And the data registration means registers these data in another database.
As described above, at the end of each task, data that no longer needs to be changed at the end of the task is sequentially extracted from the database in use and registered in another database. The processing required for data migration can be started without waiting for the end of work.
As a result, the time available for migrating data from one database in use to another is substantially increased, and the old system's database is replaced by the new system by the next business day. It is possible to complete the process of migrating data to the database.
[0016]
Further, in addition to each of the above-described configurations, a data processing unit that processes and edits the structure of the data extracted by the data extraction unit according to the data storage structure of another database and transfers the data to the data registration unit may be provided. Good.
[0017]
By applying such a configuration, it is easy to increase the type of data used to update the system and provide a new service, or to increase the storage capacity allocated to each data. It is possible to deal with it.
[0018]
Further, it is also possible to additionally provide an extraction processing activation unit that activates the data extraction unit based on a preset end time of each task.
[0019]
Since the data extraction means is automatically activated based on the preset end time of each task, the schedule management required for the data migration process can be completely automated.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the data migration method of the present invention will be described with reference to FIGS. Here, as an example, a billing system in a financial institution such as a bank is taken as a processing system consisting of a plurality of operations performed while regulating the time, and the data migration method of the present invention is applied to this billing system. The case will be described.
[0021]
The term “plural operations” specifically refers to a window operation that requires direct dialogue between employees and customers, an automatic operation performed using an automatic machine such as a cash dispenser or an ATM, and a store closing operation. There are three types of daily work that will be performed later in the bank.
[0022]
For example, processing related to opening a new account or closing a contract is a kind of window service, and cash processing performed using an automatic machine such as a cash dispenser is a kind of automatic machine business, and one day business. Processing such as confirmation of the balance of money performed inside the bank at the time of termination is one aspect of daily business.
[0023]
These three types of work are part of the work performed by regulating the time, and when viewed in chronological order, are completed in the order of the window work, the automatic machine work, and the daily work.
However, the automatic operation can be performed in parallel with the window operation, and the daily operation can be executed in parallel with the window operation and the automatic operation.
[0024]
In addition, data such as customer account information and cash payment history is generally managed by the customer irrespective of the type of business such as window business, automatic machinery business, and daily business. A variety of data are centrally registered in one database via an account number or the like.
[0025]
Of these, for example, data such as account numbers and names, which are customer account information, are registered or deleted from the database when opening a new account or canceling, etc. This data does not require a change operation.
In addition, since the handling of cash can be handled in both the counter business and the automated machinery business, the data such as the deposit history rewritten in connection with the cash accounting will be changed at the end of the automated machinery business. This data does not require any operation.
In the following description, a data group X collectively includes various types of data that do not require a change operation at the end of the window operation, and a data group Y includes various types of data that do not require the change operation at the end of the automatic machine operation. Further, various data that does not require a change operation at the end of the daily work are collectively described as a data group Z in a simplified manner.
[0026]
Next, with reference to FIGS. 1 to 3, a data transfer method in the case where a banking system of a financial institution is transferred from an old system to a new system will be specifically described.
[0027]
In this embodiment, first, as shown in FIG. 1, at the end of the window operation, only the data belonging to the data group X is extracted from the various data registered in the database of the old system 1 and the data is extracted. Transfer to the migration system 2 (Process 1). Next, each data of the data group X is processed and edited by the data migration system 2 in accordance with the editing condition 2x for adapting each of the extracted data of the data group X to the data storage structure of the new system 3 and the new system 3 is created. Transfer (process 2). Then, each data of the data group X transferred to the new system 3 is stored and registered in the database of the new system 3 (process 3).
[0028]
Here, the processing 1 is to transfer each data of the data group X requested from the data migration system 2 configured by the application server dedicated to the migration processing or the subordinate client or the host machine from the database server or the host machine on the old system 1 side. The process 2 is a process of reading and transferring data, and the process 2 is composed of an editing condition 2x set in an application program for the migration process by an application server dedicated to the migration process constituting the data migration system 2 or a subordinate client or host machine. Is a process of editing and processing each data of the data group X in conformity with the data storage structure of the new system 3 and transferring the data to the database server or the host machine of the new system 3.
The process 3 is a data store process for storing and registering the edited and processed data group X in the database of the new system 3 corresponding to the database of the old system 1.
[0029]
With the above processing operations, the migration processing of the data group X for which the change operation is no longer required at the end of the window operation is completed.
[0030]
Next, when an automatic operation performed using an automatic machine such as a cash dispenser or an ATM is completed, as shown in FIG. 2, various types of data registered in the database of the old system 1 at the end of the automatic operation. Only the data belonging to the data group Y is extracted from the data and transferred to the data migration system 2 (process 4). Next, each data of the data group Y is processed and edited by the data migration system 2 according to the editing condition 2y for adapting each of the extracted data of the data group Y to the data storage structure of the new system 3, and the new system 3 Transfer (process 5). Then, each data of the data group Y transferred to the new system 3 is stored and registered in the database of the new system 3 (process 6).
[0031]
The processing 4 reads each data of the data group Y requested from the data migration system 2 constituted by the application server dedicated to the migration processing or the subordinate client or the host machine from the database server or the host machine of the old system 1 side and reads the data. The process 5 is a process of transferring the data group according to the editing conditions 2y set in the application program for the migration process by an application server dedicated to the migration process constituting the data migration system 2 or a subordinate client or host machine. This is a process of editing and processing each data of Y in conformity with the data storage structure of the new system 3 and transferring the data to the database server or the host machine of the new system 3.
The process 6 is a data store process for storing and registering the edited and processed data group Y in the database of the new system 3 corresponding to the database of the old system 1.
[0032]
With the above processing operations, the migration processing of the data group Y for which the change operation is no longer necessary at the end of the automatic machine operation is completed.
[0033]
Finally, when the daily business performed in the line after the store closes, as shown in FIG. 3, as shown in FIG. 3, among the various data registered in the database of the old system 1 at the end of the daily business. Then, only the data belonging to the data group Z is extracted and transferred to the data migration system 2 (processing 7). Next, each data of the data group Z is processed and edited by the data migration system 2 in accordance with the editing condition 2z for adapting each of the extracted data of the data group Z to the data storage structure of the new system 3 to the new system 3. Transfer (process 8). Then, each data of the data group Z transferred to the new system 3 is stored and registered in the database of the new system 3 (process 9).
[0034]
The processing 7 reads each data of the data group Z requested from the data migration system 2 constituted by the application server dedicated to the migration processing or the subordinate client or the host machine from the database server or the host machine of the old system 1 side and reads the data. The process 8 is a process of transferring a data group according to an editing condition 2z set in an application program for the migration process by an application server dedicated to the migration process constituting the data migration system 2 or a subordinate client or host machine. This is a process of editing and processing each data of Z in conformity with the data storage structure of the new system 3 and transferring the data to a database server or a host machine of the new system 3.
The process 9 is a data store process for storing and registering the edited and processed data group Z in the database of the new system 3 corresponding to the database of the old system 1.
[0035]
With the above processing operations, the migration processing of the data group Z that no longer requires the change operation at the end of the daily work is completed, and as a result, all the data in the old system 1 has been migrated to the new system 3. Become.
[0036]
FIG. 4 is a functional block diagram showing an outline of the configuration of the data migration system 2 configured by a computer such as an application server dedicated to the migration process or a subordinate client or host machine.
[0037]
As shown in FIG. 4, the data migration system 2 includes a definition information storage unit 4 for storing a type of data that does not require a change operation at the end of each task in association with each task, A data extraction unit 5 that refers to the definition information storage unit 4 at each time and extracts only data corresponding to completed tasks from the database of the old system 1 and a data extracted by the data extraction unit 5 in the data of the new system 3 Data processing means 6 for processing / editing according to the storage structure, and data registration means 7 for registering data processed / edited by the data processing means 6 in the database of the new system 3.
[0038]
The extraction process automatic activation means 9 has a function of activating the data extraction means 5 based on a preset end time of each task.
[0039]
The definition information setting means 8 is for manually setting in the definition information storage means 4 the correspondence between the type of data that does not require a change operation at the end of each task and each task in the definition information storage means 4, and constitutes the data migration system 2. Computer keyboard, mouse, display unit, and the like.
Information related to the end time of each task is also set in the definition information storage unit 4 via the definition information setting unit 8.
[0040]
The definition information storage means 4 is composed of a non-volatile memory provided in a computer constituting the data migration system 2, and has the functions of data extraction means 5, data processing means 6, data registration means 7, and extraction processing automatic activation means 9 Is realized by a microprocessor mounted on a computer constituting the data migration system 2 and a control program thereof.
[0041]
An example of data registered in the database of the old system 1 is shown in FIG. As described above, data such as customer account information and cash payment history is generally managed by the customer irrespective of the type of business such as window business, automatic machinery business, and daily business. Normally, various data are centrally registered in one database via an account number or the like.
In the example of FIG. 5, n records that store information for each customer have already been registered, and the data field of each record is related to the time series in which tasks such as window work, automatic machine work, and daily work are completed. Instead, a series of data is registered mainly for customers. For example, the data fields F1 and F2 of the customer corresponding to the record number 1 contain data a related to the daily business. ₁ , B ₁ Is registered in the data field F3, and the data c related to the operation of the automatic machine is stored in the data field F3. ₁ Is registered, and data d4 related to the window service is stored in the data fields F4 and F5. ₁ , E ₁ Is registered.
[0042]
FIG. 6A shows an example of the definition information storage unit 4 that stores the correspondence between the type of data that does not require a change operation at the end of each task and the value [G (i)] representing each task. FIG.
In this example, the data related to the window service is stored in the column of G (0) based on the value of the index i, and the data related to the automatic machine business is stored in the column of G (1) based on the value of the index i. Further, data related to daily work is stored in the column of G (2) based on the value of the index i.
For example, it means that the data related to the window service is registered in the data fields F4 and F5 of each record through all the records as shown in FIG.
[0043]
6B, the end time of each task is also stored in the definition information storage unit 4 based on the correspondence with the value [T (i)] indicating each task by the index i, as shown in FIG. 6B. . For example, the end time of the window service is stored as 15:00 in the column of T (0) based on the value of the index i.
[0044]
FIG. 7 is a conceptual diagram showing the correspondence between storage locations, such as in what storage area the data registered in the database of the old system 1 is registered in the new system 3.
In the example illustrated in FIG. 7, for example, the data related to the daily work registered in the data field F <b> 1 which is the first storage area in the record of the old system 1 becomes the third data in the record in the new system 3. This indicates that the information is registered in the data field F3 serving as a storage area. The setting of the correspondence can also be manually set via the definition information setting means 8 described above.
[0045]
Next, referring to a flowchart of FIG. 10 showing an outline of a data migration process performed by a microprocessor (hereinafter, simply referred to as a CPU) mounted on a computer constituting the data migration system 2, the data extraction means 5, the data The details of the processing operation by the processing means 6, the data registration means 7, and the extraction processing automatic activation means 9 will be described.
[0046]
First, the CPU of the data migration system 2 sets an initial value 0 to an index i for specifying the type of business (step S1), and stores the index i from the definition information storage unit 4 as shown in FIG. Is read (step S2), and it is determined whether or not the current time detected by the internal clock device included in the data migration system 2 has reached the business end time T (i). (Step S3). Here, if the current time detected by the internal clock device has not reached the business end time T (i), the CPU repeatedly executes the determination processing in step S3 to set the current time to the business end time T (i). Wait until it reaches.
At this stage, since the value of the index i is 0, the current time detected by the internal clock device is 15:00 (time corresponding to T (0) in FIG. 6B) which is the end time of the window service. Until it reaches, the determination process of step S3 is repeatedly executed.
[0047]
Then, when it is detected in the determination processing in step S3 that the current time detected by the internal clock device has reached the work end time T (i), the CPU functioning as the extraction processing automatic activation means 9 uses the old system 1 After the value of the index j for specifying the record of the database in is temporarily initialized to 0 (step S4), the value of the index j is incremented by 1 (step S5).
[0048]
Next, the CPU functioning as the data extracting means 5 reads the j-th record of the database in the old system 1 based on the value of the index j, and stores the definition information storing means 4 as shown in FIG. With reference to this record, data is extracted from the data field corresponding to G (i) of the definition information storage means 4 for this record (step S6).
At this stage, since the value of the index j is 1, the first record of the database in the old system 1 is read, and the value of the index i is 0. 6 (a), the data registered in the data fields F4 and F5 corresponding to G (0) of the definition information storage means 4, that is, the data d related to the window business ₁ , E ₁ Is extracted.
The process in step S6 is a process corresponding to process 1 in FIG.
[0049]
Next, after the CPU functioning as the data processing means 6 processes and edits the extracted data according to the data storage structure in the database of the new system 3 (step S7), the CPU functioning as the data registration means 7 executes the processing shown in FIG. The processed and edited data is registered in the database of the new system 3 with reference to the correspondence of the storage locations as shown in FIG. 7 (step S8).
At this stage, the data d related to the window business processed and edited in the process of step S7 ₁ , E ₁ Are stored in the data fields F5 and F1 of the first record in the database of the new system 3 (data fields corresponding to F4 and F5 of the old system 1 in the database of the new system 3) as shown in FIG. You will be registered.
The process in step S7 is a process corresponding to process 2 in FIG. 1, and the process in step S8 is a process corresponding to process 3 in FIG.
[0050]
Next, the CPU determines whether or not the value of the index j specifying the record of the database in the old system 1 has reached the total number n of records (step S9). If it has not reached this point, it means that there is another record from which the data for which the change operation is no longer necessary is to be extracted, and the CPU returns to the process of step S5 and sets the value of the index j to 1 After the increment, the same processing as described above is repeatedly executed.
[0051]
As a result, from each of the first record to the n-th record of the database in the old system 1, the data registered in the data fields F4 and F5, that is, d which is a constituent element of the data group X related to the window service ₁ ~ D _n And e ₁ ~ E _n Are extracted and processed and edited according to the data storage structure of the new system 3, and the positions of the data fields F 5 and F 1 in each record of the database of the new system 3 are set as shown in FIG. Will be registered.
[0052]
In this way, it is determined in step S9 that the extraction, processing, editing, and registration processes for all the data belonging to the data group X related to the window service have been completed, and the value of the index j has reached the total number n of records. When it is detected in the processing, the CPU determines whether or not the value of the index i for specifying the type of task has reached the value 2 corresponding to the daily task to be completed last (step S10).
[0053]
If the value of the index i has not reached 2, it means that some work has not yet been completed at this point, and the CPU has incremented the value of the index i specifying the type of the work by one. Thereafter (step S11), the process returns to step S2, and the same process as described above is repeatedly executed.
[0054]
As a result, when the current time detected by the internal clock device included in the data transfer system 2 reaches the end time T (1) of the automatic operation, for example, 18:00, the first time of the database in the old system 1 is reached. The data registered in the data field F3 corresponding to G (1) of the definition information storage means 4 of FIG. 6A from each of the record to the n-th record, that is, the configuration of the data group Y related to the automatic machine operation Element c ₁ ~ C _n Are extracted (processes corresponding to the process 4 in FIG. 2), and each of them is processed and edited according to the data storage structure of the new system 3 (processes corresponding to the process 5 in FIG. 2). Referring to the correspondence relationship, these data are registered in the data field F2 of each record of the database of the new system 3 as shown in FIG. 9 (process corresponding to process 6 in FIG. 2). .
[0055]
Thereafter, the value of the index i for specifying the type of job is further incremented by one, and the current time detected by the internal clock device provided in the data migration system 2 is the end time T (2) of the daily job, for example, 20:00. Is reached, the data field F1 corresponding to G (2) of the definition information storage means 4 of FIG. 6A is read from each of the first to n-th records of the database in the old system 1. , F2, that is, a which is a component of a data group Z related to daily work ₁ ~ A _n , B ₁ ~ B _n , ... are all extracted (processing corresponding to processing 7 in FIG. 3), and each of them is processed and edited according to the data storage structure of the new system 3 (processing corresponding to processing 8 in FIG. 3). 7, these data are registered in the data fields F3, F4,... Of each record of the database of the new system 3 (processing corresponding to the processing 9 in FIG. 3), and the old system All the data in 1 will be migrated to the database of the new system 3.
[0056]
At this stage, all the data transfer processing related to the window work and automatic machine work has already been completed, so the only data that needs to be transferred after all work is completed is the data related to daily work. The amount of data to be migrated is reduced compared to the conventional method that collectively transfers data related to window operations, automatic operations, and daily operations to another database. It is quite possible to migrate only the data to another database by the start of business the next day.
[0057]
【The invention's effect】
The data migration method and the data migration system according to the present invention can be used to transfer the contents of a database storing data used in a plurality of tasks performed at a regulated time to another newly prepared database. Each time the system is completed, only the data that no longer needs to be changed at the end of the business is extracted from the database in use and registered in the new database. Processes required for data migration can be started without waiting for the end of the data transfer, and therefore, the time available for migrating data from one database in use to another is substantially reduced. To complete the process of migrating data from the old system database to the new system database by the start of business the next day. The ability.
This eliminates the need for setting holidays, which was required when updating the system in the operations of financial institutions, etc., and allows various operations to be continued smoothly, improving the reliability and reliability of customers. Risks such as loss of business opportunities can also be avoided.
[0058]
Furthermore, since the structure of the data extracted from the database in use is processed and edited according to the data storage structure of another database, and then registered in another database, new services are required when updating the system. It is also possible to easily cope with the work of increasing the type of data used for providing or increasing the storage capacity allocated to each data.
[0059]
In addition, based on a preset end time, fixed data is automatically extracted at the end of each task that does not require a change operation, so schedules required for data migration processing Management can be completely automated.
[0060]
In addition, since the data migration system operates independently of the old system and the new system, in the event of a hardware failure, an alternative machine (another data migration system) can be assigned to perform the migration process. It is possible, and the security of data storage against hardware failures is also improved.
In addition, since the data migration system can be operated independently, it is possible to establish a business type in which processing operations for creating migration data are outsourced.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing an outline of a process performed at the end of a window operation.
FIG. 2 is a conceptual diagram showing an outline of a process performed at the end of an automatic machine operation.
FIG. 3 is a conceptual diagram showing an outline of a process performed at the end of a daily operation.
FIG. 4 is a functional block diagram schematically showing the configuration of a data migration system.
FIG. 5 is a conceptual diagram showing an example of data registered in a database of an old system.
FIG. 6A is a conceptual diagram showing an example of a definition information storage unit which stores a correspondence between each type of data and a type of data that does not require a change operation at the end of each business, and FIG. FIG. 6B is a conceptual diagram showing an example of the correspondence between each task and its end time.
FIG. 7 is a conceptual diagram showing an example of a correspondence relationship between data registered in a database of an old system and storage locations of data in a new system.
FIG. 8 is a conceptual diagram illustrating an example of data registered in a database of a new system at the end of a window operation.
FIG. 9 is a conceptual diagram illustrating an example of data registered in a database of a new system at the end of an automatic machine operation.
FIG. 10 is a flowchart illustrating an outline of a data migration process performed by a microprocessor mounted on a computer configuring the data migration system.
[Explanation of symbols]
1 old system
2 Data migration system (computer)
3 New system
4 Definition information storage means (non-volatile memory)
5 Data extraction means
6 Data processing means
7 Data registration means
8 Definition information setting means
9 Extraction processing automatic start means

Claims (5)

A data migration method for migrating the contents of a database storing data used in a plurality of operations performed by regulating time to another newly prepared database,
At the end of each of the tasks, only data that no longer requires a change operation at the end of the task is extracted from the database in use, and the extracted data is registered in the another database. Data migration method. 2. The data migration method according to claim 1, wherein a structure of data extracted from the database in use is processed and edited according to a data storage structure of the another database, and then registered in the another database. A data migration system for migrating the contents of a database storing data used in a plurality of operations performed by regulating the time to another newly prepared database,
Definition information storage means for storing the type of data that does not require a change operation at the end of each task in association with each task,
A data extraction unit that refers to the definition information storage unit at the end of each of the tasks and extracts only data corresponding to the completed task from a database in use;
A data registration unit for registering the data extracted by the data extraction unit in the another database. 4. The data processing means according to claim 3, further comprising a data processing means for processing / editing the structure of the data extracted by said data extraction means in accordance with the data storage structure of said another database and passing it on to said data registration means. Data migration system. 5. The data migration system according to claim 3, further comprising an extraction processing activation unit that activates the data extraction unit based on a preset end time of each of the tasks.

Images