ADO Queries
We may use SQL to create queries to specify
only a selected set of records and fields to view.
Examples
Display records
where "Companyname" starts with an A
How to display only the records from the "Customers" table that have a "Companyname"
that starts with an A.
Display records
where "Companyname" is > E
How to display only the records from the "Customers" table that have a "Companyname"
that is larger than E.
Display only Spanish
customers
How to display only the Spanish customers from the "Customers" table.
Let the user choose
filter
Let the user choose which country to show customers from.
Display Selected Data
We want to display only the records from the "Customers" table that have a "Companyname"
that starts with an A (remember to save the file with an .asp 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")
sql="SELECT Companyname, Contactname FROM Customers
WHERE CompanyName LIKE 'A%'"
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>
|
Here is the result:
| Companyname |
Contactname |
| Alfreds Futterkiste |
Maria Anders |
Learn how your website performs under various load conditions
 |
|
WAPT
is a load, stress and performance testing tool for websites and web-based applications.
In contrast to "800-pound gorilla" load testing tools, it is designed to minimize the learning
curve and give you an ability to create a heavy load from a regular workstation.
WAPT is able to generate up to 3000 simultaneously acting virtual users using standard hardware configuration.
Virtual users in each profile are fully customizable. Basic and NTLM authentication methods are supported.
Graphs and reports are shown in real-time at different levels of detail, thus helping to manage the testing process.
Download the free 30-day trial!
|
| 
HOME
Printer friendly page
