Method of managing data structure containing both persistent data and

Abstract

According to a data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, when each process fetches shared data from a data base into a memory, whether the shared data requires data inherent in the process is checked. Any inherent data of the process is determined, if necessity for that data is determined. The determined inherent data of the process is stored in the memory. A pointer for the inherent data of the process, which is stored in the memory, is stored into the fetched shared data in accordance with attributes inherent in the process requiring the inherent data of the process.