| 摘要 |
PURPOSE:To improve the efficiency of data processing by comparing the data stored in a writing position with the data held in a data holding means, and when both the data coincide with each other, permitting the writing of the updating data. CONSTITUTION:An updating identification module 15 reads out the line data stored on an updating data writing position at present from a processing objective file 16 and decides whether the read data are the same as the line data stored in an unupdated data area 14 or not. When both the data are different from each other, the line data to be updated have been already updated by another computer device is decided and writing in the file 16 is inhibited. When both the data are the same, the updating processing of the current computer device is regarded as the initial updating/processing and the updating/processing of the line data to be updated, i.e. writing in the file 16, is permitted. Thus, plural computer devices can simultaneously execute tabulating processing. |
