2. ADO tutorial

ADO is a Microsoft technology, and ADO means ActiveX data objects (ActiveX Data Objects).

In our ADO tutorials, you will learn about ADO and how to use ADO to access databases from your website.

Start learning now ADO!

2.1. ADO reference manual

In the rookie tutorial, we provide you with a complete ADO reference manual,including built-in objects, as well as their properties and methods.

ADO object Reference Manual

2.2. ADO instance

Learn through examples! Because ASP scripts can only be executed on the server side, you can’t view ASP code in the browser, all you can see is pureHTML code output by ASP.

ADO example!

  • 2.2.17. ADO Property object

    Property object ¶ Built-in properties are those that are implemented in ADO and immediately available to any new object...
    2025-10-25 13:35:20 UTC

  • 2.2.18. ADO Record object

    Record object (ADO version 2.5) ¶ ADO Record object is used to hold a row in a recordset, or a file or directory of...
    2025-10-25 13:35:19 UTC

  • 2.2.19. ADO Recordset object

    Recordset object ¶ ADO Recordset object is used to hold a recordset from a database table.one Recordset the obj...
    2025-10-25 13:35:20 UTC

  • 2.2.20. ADO Stream object

    Stream object (ADO version 2.5) ¶ ADO Stream object is used to read and write and to process binary data or text st...
    2025-10-25 13:35:18 UTC

  • 2.2.21. ADO data type

    The following table lists the data type mappings between Access, SQL Server,and Oracle: DataType Enum Value Ac...
    2025-10-25 13:35:18 UTC

  • 2.2.22. You have learned ADO, what’s the next step?

    ADO summary ¶ Overview of ADO ¶ This tutorial has shown you how to access data in a database from a Web site. Y...
    2025-10-25 13:35:18 UTC

  • 2.2.23. ADO instance

    Display Display Records Display records in HTML tables `Add a title to an HTML table`__ Add colors to HTML ...
    2025-10-25 13:35:18 UTC

Principles and Applications of WebGIS

 37

Web框架

 942

WEB基础

 287

Principles, Technologies, and Methods of Geographic Information Systems

 102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.