JPH0644269B2 - File update method - Google Patents

Description

Description: (a) Technical Field of the Invention The present invention relates to a file updating method for updating an account counter file in an online processing system of a financial institution.

(b) Conventional Technology and Problems There have been widely introduced online systems for automatically processing customer transactions (deposits, withdrawals, transfers, etc.) by connecting a financial institution, for example, each branch of a bank to a center with a line.

When the customer's transaction application data is sent from the branch office to the center, the processing system of the center updates the account file of the customer and also updates the account counter file.

The account counter file stores the amount and the number of deposits and withdrawals for each branch where a transaction has occurred, and the contents are updated each time a transaction occurs.

A file device such as a magnetic disk device is used for this account counter file. In the conventional method, the processing device of the center performs read / write to the file device each time a transaction occurs at each branch. Exclusive control is set to the file device until the update of the account counter file is completed. Since the access seek time of the file device is generally included, it is longer than the access time of the main storage device. Therefore, other transactions that occurred during the exclusive control period enter the queue and wait for processing, and when transactions occur frequently, the queue that occurs in the transaction processing unit tends to grow, and the processing efficiency of the system increases. There was a downside.

(c) Object of the invention The present invention has been made to solve the above-mentioned drawbacks.
An object of the present invention is to provide a file update method that improves the processing efficiency of the system.

(d) Configuration of the Invention The present invention is a file updating method in a host computer for online processing of account-based transactions that have occurred in branch terminal devices connected to a line, wherein the host computer is a processing device, a main storage unit, and a file. The file device has an account counter file that stores an account counter that accumulates at least the amount of deposits and withdrawals by branch and the number of accounts, and an account file in which at least the amount of deposits and withdrawals by account in which transactions have occurred is updated. Provided, in the main storage unit, an account counter area for transferring the account counter, the processing device, a transaction processing unit for processing deposit and withdrawal of account-based transactions that occurred in the branch terminal device, And a transfer processing unit for mutually transferring the account counter between the account counter area in the main storage unit and the account counter file in the file device. When the online processing is performed, the transfer processing unit is activated to transfer the account counter in the file device to the account counter area of the main storage unit, and then the online processing is performed to perform the transaction processing. When a transaction occurs at a branch, the total amount of deposits and withdrawals by each branch and the cumulative number of transactions are updated by the account counter in the account counter area, and when the online processing is canceled and the offline processing is started, The file update method is characterized in that the transfer processing unit is activated to transfer the account counter in the account counter area to the account counter file of the file device.

As described above, according to the present invention, while the processing device of the center is operating online, the transaction processing unit stores the deposit / withdrawal transaction data (amount and number of deposits / withdrawals) of each branch in the main memory unit. The above-mentioned account counter file is transferred by transferring the deposit / withdrawal transaction data for each branch, which has been aggregated in the account counter area, to the account counter file provided in the file device when offline. Is to be updated.

(e) Examples of the Invention Hereinafter, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram for explaining an embodiment of the present invention and shows an example of an online processing system in a bank. In FIG. 1, branch terminal devices T1 to Tn are connected to a processing device 7 of a center by a line 1. That is, the transmission data from the branch terminal devices T1 to Tn are input to the processing device 7 via the communication control device 6.

The processing device 7 includes a processing unit 8 including a transaction processing unit 81 and a transfer processing unit 82, a management unit 85, and an account file 51 of the file device 4 having a deposit / withdrawal record 52 provided for each account. Then, transaction data is processed while performing read / write to the account counter area Di provided in the main storage unit 5.

Further, the management unit 85 includes a transaction processing unit 81 and a transfer processing unit of the processing unit 8.
It has the function of the operating system that manages 82 job executions.

As shown in the explanatory diagram of the account file in FIG. 2, in the account file 51, the store number (branch code: A1 to An), the subject (deposit type: B), the account number (for each account to be traded) Ci), data including deposit / withdrawal amounts and the like are stored as a record group for each branch as a deposit / withdrawal record 52, and updated every time a transaction occurs.

Further, as shown in the explanatory diagram of the account counter file of FIG. 3, each record of the account counter file G is the transaction data collected from each branch, such as store number (A1 to An), item (deposit type: B), and deposit. It is composed of the amount of money (IM), the number of deposits (IN), the amount of withdrawal (OM), and the number of withdrawals (ON), and is stored in the file device 3.

During the startup processing of the host system (the preparation stage for the system operation of the center) before the start of branch business, the management unit 85
The transaction processing unit 81 is activated by. The transaction processing unit 81 is
All records of the account counter file G are read from the file device 3 and transferred to the account counter area Di of the main storage unit 5.

That is, in the account counter area Di, store numbers (A1 to An),
Subject (Deposit type: B), Deposit amount (IM), Number of deposits (IN),
Data of withdrawal amount (OM) and number of withdrawals (ON) are secured.

The transaction data transmitted from the branch terminal devices T1 to Tn to the processing device 7 online when the business is started is composed of the store number Ai in which the transaction occurred, the item B, the account number C, the deposit / withdrawal distinction D, and the amount. Then, the transaction processing unit 81 receives the transaction data and performs the following processing.

That is, the transaction processing unit 81 accesses the account file 51 based on the received transaction data using the account number as a key,
Update the deposit / withdrawal record 52 for each customer account.

When the update processing of the deposit / withdrawal record 52 of the customer account is completed, the transaction processing unit 81 determines the account counter area D based on the data, that is, the item, the amount of deposit / withdrawal, and the number of deposit / withdrawal generated by the transaction.
Add to i.

That is, in the account counter area Di, deposit / withdrawal amount data (IM, IN) by item B and transaction count data (OM, ON) are collected for each store number A1 to An for each transaction. In the total of deposits, the number of deposits (IN) is incremented by 1, and the deposit amount
The amount of the transaction this time is added to (IM). With respect to the total amount of withdrawals, the number of withdrawals (ON) is incremented by 1, and the amount of transaction this time is added to the withdrawal amount (OM).

When the business of each branch is completed and there is no transmission from the branch terminal devices T1 to Tn, for example, the operator can operate the system console.
By inputting a command from 80 to the management unit 85,
The online operation mode is closed to shift to offline, and the transfer processing unit 82 is activated.

The transfer processing section 82 reads all the records of the total data in the account counter area Di and transfers it to the account counter file G. With the above processing, the update processing of the account counter file G is completed.

In the conventional method, when transaction data is received from the branch terminal devices T1 to Tn, after finishing the transaction processing for each case,
Since the account counter file G is updated by directly accessing the file device 3, it takes time to access the file.

In the present invention, the transaction processing unit 81 uses the account counter file G
Is transferred to the account counter area Di of the main storage unit 5 and the update processing of the account counter file G is performed on the main storage unit 5 during online processing during operation of the branch terminal devices T1 to Tn. By eliminating access to the file device 3 every time a transaction occurs, the problem of processing efficiency deterioration due to file access is solved.

(f) Effect of the Invention As described above, according to the present invention, the processing efficiency of the online system using the file device can be improved by updating the transaction data for each branch of the account counter file G with one file access. .

[Brief description of drawings]

FIG. 1 is a block diagram illustrating one embodiment of the present invention, and FIG.
The figure shows an explanatory diagram of an account file, and FIG. 3 shows an explanatory diagram of an account counter file. The symbols used in the figure are as follows. 1 is a line, 3 and 4 are file devices, 5 is a main storage unit, 51 is an account file, 52 is a deposit / withdrawal record, 6 is a communication control device, 7 is a processing device, 8 is a processing unit, 80 is a system console, and 81 Is a transaction processing unit, 82 is a transfer processing unit, 85 is a management unit, D
i is the account counter area, G is the account counter file, T
1 to Tn represent branch terminal devices.

Claims (1)

[Claims] 1. A file updating method in a host computer for online processing of account-based transactions generated in a branch terminal device connected to a line, wherein the host computer has a processing device, a main storage unit and a file device. The file device is provided with an account counter file that stores at least an account counter that accumulates the amount and amount of deposits and withdrawals by branch, and an account file that updates at least the deposits and withdrawals by account in which transactions have occurred, the main memory In the section, an account counter area for transferring the account counter is provided, and in the processing device, a transaction processing part for processing deposit / withdrawal of transaction by account generated in the branch terminal device, and in the main storage part. A transfer processing unit for mutually transferring the account counter between the account counter area and the account counter file in the file device; When shifting to online processing, the transfer processing unit is activated to transfer the account counter in the file device to the account counter area of the main storage unit, and then shifts to online processing and activates the transaction processing unit. When a transaction occurs at a branch, the account counter in the account counter area updates the cumulative amount of deposits and withdrawals by the branch and the number of transactions, and when the online processing is canceled and the processing shifts to the offline processing, the transfer processing is performed. A file updating method, characterized by activating a unit to transfer the account counter in the account counter area to an account counter file of the file device.