2.2.5. ADO display

发布时间 :2025-10-25 12:23:20 UTC      

The most common way to display data from a recordset is to display the data in an HTML table.

Display field name and field value

We have a database named “Northwind”, and we want to display the data in the “Customers” table (remember to .asp save this file for the extension):

<html>
<body>
<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"
set rs = Server.CreateObject("ADODB.recordset")
rs.Open "SELECT \* FROM Customers", conn
do until rs.EOF
  for each x in rs.Fields
    Response.Write(x.name)
    Response.Write(" = ")
    Response.Write(x.value & "<br>")
  next
  Response.Write("<br>")
  rs.MoveNext
loop
rs.close
conn.close
%>
</body>
</html>

Display field names and field values in an HTML table

We can also display the data in the table “Customers” in an HTML table with the following code:

Example

<html>
<body>
<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"
set rs = Server.CreateObject("ADODB.recordset")
rs.Open "SELECT Companyname, Contactname FROM Customers", conn
%>
<table border="1" width="100%">
<%do until rs.EOF%>
  <tr>
  <%for each x in rs.Fields%>
    <td><%Response.Write(x.value)%></td>
  <%next
  rs.MoveNext%>
  </tr>
<%loop
rs.close
conn.close
%>
</table>
</body>
</html>

Add a title to the HTML table

Add a title to the HTML table to make it more readable. (keep the file suffix as follows .html ):

Example

<html>
<body>
<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"
set rs = Server.CreateObject("ADODB.recordset")
sql="SELECT Companyname, Contactname FROM Customers"
rs.Open sql, conn
%>
<table border="1" width="100%">
  <tr>
  <%for each x in rs.Fields
    response.write("<th>" & x.name & "</th>")
  next%>
  </tr>
  <%do until rs.EOF%>
    <tr>
    <%for each x in rs.Fields%>
      <td><%Response.Write(x.value)%></td>
    <%next
    rs.MoveNext%>
    </tr>
  <%loop
  rs.close
  conn.close
  %>
</table>
</body>
</html>

image0

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.