One is setting transaction object parameters in application directly,which has been rarely used in practical applications owing to its poor flexibility.

This paper introduces the principle and method of interface between Powerbuilder and DBMS,and how to use transaction object to connect with database during developing MRPII application.

Through researching on the transaction object technology in PowerBuilder,this paper gives two methods for realizing communication of HDB(heterogeneous database),and achieving the target of making combined use of HDB in one system.

This paper introduces steps and techniques for the front-end database applications in Powerbuilder (PB), gives relevant script fragments that are for creation of transaction objects of communication between PB clients and database and for definitions of their properties, and analyzes and compares several approaches for PB clients to talk to database and the corresponding script fragments.

This article firstly introduces the Model of X/Open DTP, the association between Java Transaction Service (JTS) and CORBA OTS, then gives the structure of JTS.

This paper brings forward OTSMC——a method based on OMG s OTS to manage the transaction server dynamically and relatively easily.

The architecture of object transaction service in CORBA is studied.

From the structural modeling of system, to the concept of parameterized objects and hierarchical implement of object data, In the end, The authors briefly show an application using the methods described above.