| 摘要 |
PROBLEM TO BE SOLVED: To greatly reduce time and labor for retrieving data and the load of CPU by automatically drawing related data in the other data bases by the minimum number of retrieving times only by retrieving a first data base when related data are registered in plural data bases. SOLUTION: When a sales data base 4 or a stock data base 5 is designated and the first retrieving condition of retrieving object data is inputted, a managing computer 3 retrieves the designated data base to find data corresponding to the first retrieving condition and reverse-generate a second retrieving condition based on this data, and accesses to the other data bases through the use of this second retrieving condition or ID included in the data to find data corresponding to the first retrieving condition. |
