There are many relation networks in the world of obnomenon; both the obnomenon and the relation networks are in a dynamic process.

A driver communication model based on share memory and event object .

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.

The vertical human zones in the mountain regions is a kind of the human phenomenon which is on the basis of the vertical natural zones, including culture, nationality, religion, language, population and settlement as well as all human activities.

According to the fact in Xinjang preliminary notion, acceptiable new thought and measurment of city meteorological undertakings were put forward.