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<title>ADO Delete Records</title>
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<h1>ADO <span class="color_h1">Delete Records</span></h1>
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<hr>
<p class="intro">We may use the SQL DELETE command to delete a record in a
table in a database. </p>
<hr>
<h2>Delete a Record in a Table</h2>
<p>We want to delete a record in the Customers table in the Northwind database.
We first create a table that lists all records in the Customers table:</p>
<div class="w3-code w3-border notranslate"><div>
<html><br>
<body><br>
<%<br>
set conn=Server.CreateObject("ADODB.Connection")<br>
conn.Provider="Microsoft.Jet.OLEDB.4.0"<br>
conn.Open "c:/webdata/northwind.mdb"<br>
set rs=Server.CreateObject("ADODB.Recordset")<br>
rs.open "SELECT * FROM customers",conn<br>
%><br>
<br>
<h2>List Database</h2><br>
<table border="1" width="100%"><br>
<tr><br>
<%<br>
for each x in rs.Fields<br>
response.write("<th>" & ucase(x.name) & "</th>")<br>
next<br>
%><br>
</tr><br>
<% do until rs.EOF %><br>
<tr><br>
<form method="post" action="demo_delete.asp"><br>
<%<br>
for each x in rs.Fields<br>
if x.name="customerID" then%><br>
<td><br>
<input type="submit" name="customerID" value="<%=x.value%>"><br>
</td><br>
<%else%><br>
<td><%Response.Write(x.value)%></td><br>
<%end if<br>
next<br>
%><br>
</form><br>
<%rs.MoveNext%><br>
</tr><br>
<%<br>
loop<br>
conn.close<br>
%><br>
</table><br>
<br>
</body><br>
</html>
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<hr>
<p>If the user clicks on the button in the "customerID" column he or she will be
taken to a new file called "demo_delete.asp". The "demo_delete.asp" file
contains the source code on how to create input fields based on the fields from
one record in the database table. It also contains a "Delete record" button
that will delete the current record:</p>
<div class="w3-code w3-border notranslate"><div>
<html><br>
<body><br>
<br>
<h2>Delete Record</h2><br>
<%<br>
set conn=Server.CreateObject("ADODB.Connection")<br>
conn.Provider="Microsoft.Jet.OLEDB.4.0"<br>
conn.Open "c:/webdata/northwind.mdb"<br>
<br>
cid=Request.Form("customerID")<br>
<br>
if Request.form("companyname")="" then<br>
set rs=Server.CreateObject("ADODB.Recordset")<br>
rs.open "SELECT * FROM customers WHERE customerID='" & cid & "'",conn<br>
%><br>
<form method="post" action="demo_delete.asp"><br>
<table><br>
<%for each x in rs.Fields%><br>
<tr><br>
<td><%=x.name%></td><br>
<td><input name="<%=x.name%>" value="<%=x.value%>"></td><br>
<%next%><br>
</tr><br>
</table><br>
<br><br><br>
<input type="submit" value="Delete record"><br>
</form><br>
<%<br>
else<br>
sql="DELETE FROM customers"<br>
sql=sql & " WHERE customerID='" & cid & "'"<br>
on error resume next<br>
conn.Execute sql<br>
if err<>0 then<br>
response.write("No update permissions!")<br>
else<br>
response.write("Record " & cid & " was deleted!")<br>
end if<br>
end if<br>
conn.close<br>
%><br>
<br>
</body><br>
</html>
</div></div>
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