Patent ID: 7912821

Claim:
A computer readable storage medium for storing a data management program causing a computer to execute a processing method, the processing method comprising: a reference activation step, after generating a first time-series data in a memory device at activation of a reference operation to a first record in a database, of referring to the first record, the first time-series data for causing a chronological relationship to be identifiable; an update step, in response to an update request for the first record, of generating a second record corresponding to the first record in the database and updating the second record; a commit step of generating a second time-series data in the memory device at a commit operation for the updating; a reference termination step of deleting the first time-series data at completion of the reference operation; and a deletion step, if the first time-series data generated earlier than the second time-series data is not present as a result of the commit step or the reference termination step, of deleting the first record.