An Efficient Conflict Detection Method for Maintaining Consistency of Mobile Database System

In mobile database system, a voluntary or involuntary disconnection has happened frequently. This problem causes inconsistency. This paper has proposed the conflict detection method for maintaining consistency. The proposed method uses the histories of transactions consisted of the information of operations and the valid time of transactions processed in off-line. Compared with other methods, the transaction time resembles others and the conflict detection time is decreased about 17%.