最近几年来，地理信息系统无论是在理论上还是应用上都处在一个飞速发展的阶段。 GIS被应用于多个领域的建模和决策支持，如城市管理、区划、环境整治等等，地理信息成为信息时代重要的组成部分之一； “数字地球”概念的提出，更进一步推动了作为其技术支撑的GIS的发展。 与此同时，一些学者致力于相关的理论研究，如空间感知、空间数据误差、空间关系的形式化等等。 这恰好说明了地理信息系统作为应用技术和学科的两个方面，并且这两个方面构成了相互促进的发展过程。
ADO is used to access the database from a web page. Before continuing, you need to have a basic understanding of the following knowledge: WWW, HTML and basic understanding of website construction ASP (dynamic server page) SQL (structured query language) If you want to learn these projects first, please visit these tutorials on our home page. ADO is a Microsoft technology. ADO means ActiveX data object ADO is a Microsoft Active-X component ADO will be installed automatically with Microsoft IIS ADO is a programming interface to access data in a database. The common way to access a database from within an ASP page is: Create an ADO connection to the database Open a database connection Create an ADO recordset Extract the data you need from the recordset Close the recordset Close the connectionThe basic knowledge you should have ¶
What is ADO? ¶
Access the database from the ASP page ¶