Dephi中基于ADO技术实现定制报表的生成

ADO technology based automatic generation of customized report forms in Dephi

ADO是Microsoft发展的OLE DB技术,它基于COM数据访问规则和API访问,并提供一个一致、高性能、高兼容性的数据访问接口。使用ADO技术开发应用程序可以使程序开发者更容易地控制对数据库的访问,从而产生符合用户需求的数据库访问程序。着重介绍了在Dephi中应用ADO技术的数据库的访问机制和实现方法,并通过简单实例详述结合OLE自动化技术自动生成专业性较强的定制报表。

ADO （active data objects） is OLE DB technology developed by Microsoft Corporation. It is based on the data access rules and API access, and provides a consistent, high-performance and high compatibility data access interface. The ap-plication of ADO technological development application program allows the program developers to control database access easi-ly, thus can produce database access procedures which meet client requirements. The access mechanism and method of the da-tabases which use ADO technology in Dephi is introduced emphatically. Through a simple example, the highly specialized cus-tomized report forms automatically generated by combining OLE Automation technology are described in detail.