| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve operability at the time of inputting data to a database, and to speeds up the verification of constraint related with consistency. <P>SOLUTION: A data loader device 1 is provided with a verification part 2, a verified data storing part 13, a constraint control part 14 and a data inserting part 3, and operated cooperatively with a database management system 4. The verification part 2 stops consistency constraint stored by the database once when the data written in an insertion data file group 9 are inputted to the database of the database management system 4, and verifies the input data before the input according to the consistency constraint, and inputs the verified data to the database, and re-validates the consistency constraint afterwards. Thus, it is possible to input data without considering an input sequence by temporarily invalidating constraint at the time of inputting the data, and to quickly verify the consistency constraint by performing constraint verification to all the input data in a batch before input. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
