The critical technology and application of power-system oriented distributed real-time database;

This paper analyzes the function characteristics and structure of the distributed real-time database,data object and transaction s type in industry monitor&control system.

The structure and general method of distributed real time database system ,and the design scheme for connection of distributed real time database, and Web using the great function of JDBC are discussed.

As transactions in distributed real time database systems have to meet the timing requirements, such as deadlines, in addition to the well known characteristics of ACID for transactions in conventional database systems, the traditional transaction commitment protocols and real time commitment protocols developed could not guarantee the atomicity of real time transaction.

In a distributed real time database system, the only way to ensure transaction atomicity is to investigate and develop a real time atomic commit protocol.

Web-based concurrency control in distributed real-time database system;

Study on the Transaction Management for Distributed Real-Time Database Systems;

Firstly,through analyzing the recovery requirements of failure in distributed real-time main memory databases,the recovery correctness criteria of distributed real-time main memory database are presented.