基于ADO的iFIX实时数据库访问技术应用

Access Technologies to Real-time Database of iFIX Based on ADO

ADO、OLEDB是目前应用较广泛的数据库访问技术。文章介绍了这两种数据库访问技术的核心部分和原理,并用VB程序模拟现场数据源,通过iFIX的实时数据库以DDE方式从VB数据源中获取数据,再用ADO将实时数据库中信息送到Access数据库中的实例,说明了ADO强大的数据处理能力,也显示了iFIX处理数据的灵活性。

Two popular database interfaces on the Windows platforms:ADO,OLE DB are introduced ,and an example is given in this paper.iFIX gets data from VB data source which simulates data coming from field by DDE,and sends useful information to Access by ADO,which shows ADO's powerful ability and iFIX's dexterity in data processing.