| ADO 2.5 Samples |  |
Execute, Requery, and Clear Methods Example (VBScript)
This example demonstrates the Execute method when run from both a Command object and a Connection object. It also uses the Requery method to retrieve current data in a recordset, and the Clear method to clear the contents of the Errors collection. The ExecuteCommand and PrintOutput procedures are required for this procedure to run.
Use the following example in an Active Server Page (ASP). Use Find to locate the file Adovbs.inc and place it in the directory you plan to use. Cut and paste the following code into Notepad or another text editor, and save it as ExecuteVBS.asp. You can view the result in any client browser.
<!-- BeginExecuteVBS -->
<%@ Language=VBScript %>
<% ' use this meta tag instead of ADOVBS.inc%>
<!-- METADATA TYPE="typelib" uuid="00000205-0000-0010-8000-00AA006D2EA4" -->
<HTML>
<HEAD>
<META name="VI60_DefaultClientScript" content=VBScript>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
<title>ADO Execute Method</title>
<STYLE>
<!--
BODY {
font-family: 'Verdana','Arial','Helvetica',sans-serif;
BACKGROUND-COLOR:white;
COLOR:black;
}
.thead {
background-color: #008080;
font-family: 'Verdana','Arial','Helvetica',sans-serif;
font-size: x-small;
color: white;
}
.thead2 {
background-color: #800000;
font-family: 'Verdana','Arial','Helvetica',sans-serif;
font-size: x-small;
color: white;
}
.tbody {
text-align: center;
background-color: #f7efde;
font-family: 'Verdana','Arial','Helvetica',sans-serif;
font-size: x-small;
}
-->
</STYLE>
</HEAD>
<BODY>
<H3>ADO Execute Method</H3>
<HR>
<H4>Recordset Retrieved Using Connection Object</H4>
<!--- Recordsets retrieved using Execute method of Connection and Command Objects-->
<%
' connection, command and recordset variables
Dim Cnxn, strCnxn
Dim rsCustomers, strSQLCustomers
Dim Cmd
Dim rsProducts, strSQLProducts
' create and open connection
Set Cnxn = Server.CreateObject("ADODB.Connection")
strCnxn="Provider='sqloledb';Data Source=" & _
Request.ServerVariables("SERVER_NAME") & ";" & _
"Integrated Security='SSPI';Initial Catalog='Northwind';"
Cnxn.Open strCnxn
' create and open recordset
Set rsCustomers = Server.CreateObject("ADODB.Recordset")
strSQLCustomers = "Customers"
rsCustomers.Open strSQLCustomers, Cnxn, adOpenKeyset, adLockOptimistic, adCmdTable
'1st Recordset using Connection - Execute
Set rsCustomers = Cnxn.Execute(strSQLCustomers)
Set Cmd = Server.CreateObject("ADODB.Command")
Cmd.ActiveConnection = Cnxn
strSQLProducts = "SELECT * From Products"
Cmd.CommandText = strSQLProducts
'2nd Recordset Cmd - execute
Set rsProducts = Cmd.Execute
%>
<TABLE COLSPAN=8 CELLPADDING=5 BORDER=0 ALIGN=CENTER>
<!-- BEGIN column header row for Customer Table-->
<TR CLASS=thead>
<TH>Company Name</TH>
<TH>Contact Name</TH>
<TH>City</TH>
</TR>
<!--Display ADO Data from Customer Table-->
<%
Do While Not rsCustomers.EOF %>
<TR CLASS=tbody>
<TD>
<%= rsCustomers("CompanyName")%>
</TD>
<TD>
<%= rsCustomers("ContactName") %>
</TD>
<TD>
<%= rsCustomers("City")%>
</TD>
</TR>
<%
rsCustomers.MoveNext
Loop
%>
</TABLE>
<HR>
<H4>Recordset Retrieved Using Command Object</H4>
<TABLE CELLPADDING=5 BORDER=0 ALIGN=CENTER WIDTH="80%">
<!-- BEGIN column header row for Product List Table-->
<TR CLASS=thead2>
<TH>Product Name</TH>
<TH>Unit Price</TH>
</TR>
<!-- Display ADO Data Product List-->
<% Do Until rsProducts.EOF %>
<TR CLASS=tbody>
<TD>
<%= rsProducts("ProductName")%>
</TD>
<TD>
<%= rsProducts("UnitPrice")%>
</TD>
<%
rsProducts.MoveNext
Loop
' clean up
If rsCustomers.State = adStateOpen then
rsCustomers.Close
End If
If rsProducts.State = adStateOpen then
rsProducts.Close
End If
If Cnxn.State = adStateOpen then
Cnxn.Close
End If
Set Cmd = Nothing
Set rsCustomers = Nothing
Set rsProducts = Nothing
Set Cnxn = Nothing
%>
</TABLE>
</BODY>
</HTML>
<!-- EndExecuteVBS -->
See Also
Clear Method | Command Object | Connection Object | Error Object | Errors Collection | Execute Method (ADO Command) | Execute Method (ADO Connection) | Recordset Object | Requery Method