| 摘要 |
PURPOSE:To eliminate the danger of the double execution to all transaction requests in an on-line system and to simplify a processing program, by controlling automatically both start and end logs of a derived transaction via the on-line system. CONSTITUTION:A transaction request program 6 and a program execution end control means 2 are connected with the transaction derivation control means 1 of a recovery control system for derived transactions. Then the means 2 is connected with the program 6. Both means 1 and 2 are controlled by a derived transaction processing program 7 and this program 7 is managed by a restart control means 3. A log file 4 consisting of entries equal to the derived transaction simultaneous run enable number N and a management table 5 are connected to bothe means 3 and 1. Then the start/end flag of each entry and the transaction items are supplied from the file 4 and the used and unused states are managed by the table 5. |
