| 摘要 |
PURPOSE:To read in a transaction log record from a transaction log file even before that transaction log file becomes full. CONSTITUTION:A table developing part 21 develops the management record of the transaction log file 90 in which the transaction log record is stored hereafter on a transaction log address management part 50 from a transaction log management file 80. A table updating part 22 updates the transaction log management file 80 at a definite time interval on the basis of the transaction log address management part 50. A write-in address determining part 31 determines a write-in address by referring to the transaction log management part 50. A read-in address determining part 61 determines a readable range by referring to the transaction log management file 80 at the time of reading in the transaction log record at the definite time interval. A read-in address releasing part 63 updates the transaction log management file 80 by reflecting read-in by a transaction log input part 62. |
