Patent ID: 7225196

Claim:
A data conversion method for converting table data of a database, the data conversion method executed on a data conversion system including: a data conversion server having table volume mapping information, and a storage including at least one volume, said data conversion method comprising: separating, by execution of a data conversion program stored upon a medium of the data conversion server, a data conversion job used for data conversion into a data conversion server job for executing conversion processing on the data conversion server and a storage job for instructing to make a copy of a table on a volume of the storage, wherein the separating of the data conversion job into the data conversion server job and the storage job includes: creating a parameter table of the data conversion server job by extracting and converting records from a parameter table of the data conversion job; and creating a parameter table of the storage job by extracting and converting records from the parameter table of the data conversion job and the table volume mapping information; executing, by a job execution engine of the data conversion server, the storage job to instruct the storage to copy the volume of the storage including the table based on the parameter table of the storage job and to store the copied volume on the storage; and executing, by the job execution engine of the data conversion server, the data conversion server job to perform data conversion of the table included in the copied volume based on the parameter table of the data conversion server job.