| 摘要 |
PURPOSE:To decrease the number of processes of generating and maintaining a program for updating individual master files, by providing an index file wherein information for defining fields of stored data corresponding to the master files are recorded. CONSTITUTION:In an index file, information for defining fields of stored data which correspond to respective master files is recorded. For example, update data is inputted from a floppy disk 1 or a display termrinal device 2 and compiled by an update data generating program 3, and the resulting data is stored in an update data file 8 and inputted to an updata control part 4. Then, the control part 4 reads an objective index file out of an index file 7 and also reads records of an objective master file 5a or 5b. On the basis of the contents of an update-objective item number of the update data and definition information on the item number, a corresponding item in the master file is found and its field is updated. |
