COMMIT SYNCHRONIZATION CONTROL SYSTEM FOR REPORT FILE OUTPUT

摘要

PURPOSE:To improve the productivity of a program by making a print record invalid and establishing the rest point of a report file when a commit instruction or a rollback instruction is executed to a data base file. CONSTITUTION:The title system is provided with a report commit control means to execute the real output of the print record to a report file 13 and to establish the rest point of the report file 13 at the time of executing a commit instruction 2, report rollback control means 9 to make invalid the output of the print record after the rest point just before the report file 13 and to establish the rest point of the report file 13 at the time of executing a rollback instruction 4, a report commit control calling means 3 from a program 1 and a report rollback control calling means 5. Thus, since a conflict is not generated even when the output to the report file 13 is executed in the program 1 regardless of a commit request time or a roll back request time to a data base file 12, the productivity of the program is greatly improved.