我们可以使用SQL UPDATE命令在数据库中更新表中的记录。
在表中更新记录
我们要在Northwind数据库更新Customers表的记录。 我们首先创建一个列出Customers表中的所有记录的表：
<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
%>
<h2>List Database</h2>
<table border="1" width="100%">
<tr>
<%
for each x in rs.Fields
response.write("<th>" & ucase(x.name) & "</th>")
next
%>
</tr>
<% do until rs.EOF %>
<tr>
<form method="post" action="demo_update.asp">
<%
for each x in rs.Fields
if lcase(x.name)="customerid" then%>
<td>
<input type="submit" name="customerID" value="<%=x.value%>">
</td>
<%else%>
<td><%Response.Write(x.value)%></td>
<%end if
next
%>
</form>
<%rs.MoveNext%>
</tr>
<%
loop
conn.close
%>
</table>
</body>
</html>
如果用户点击的按钮"customerID"列，他或她将被带到一个所谓的新文件"demo_update.asp" 。 该"demo_update.asp"文件包含有关如何创建基于从数据库中的表中的一个记录的字段输入框的源代码。 它还包含了一个"Update record"按钮，将保存更改：
<html>
<body>
<h2>Update Record</h2>
<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"
cid=Request.Form("customerID")
if Request.form("companyname")="" then
set rs=Server.CreateObject("ADODB.Recordset")
rs.open "SELECT * FROM customers WHERE customerID='" & cid & "'",conn
%>
<form method="post" action="demo_update.asp">
<table>
<%for each x in rs.Fields%>
<tr>
<td><%=x.name%></td>
<td><input name="<%=x.name%>" value="<%=x.value%>"></td>
<%next%>
</tr>
</table>
<br><br>
<input type="submit" value="Update record">
</form>
<%
else
sql="UPDATE customers SET "
sql=sql & "companyname='" & Request.Form("companyname") & "',"
sql=sql & "contactname='" & Request.Form("contactname") & "',"
sql=sql & "address='" & Request.Form("address") & "',"
sql=sql & "city='" & Request.Form("city") & "',"
sql=sql & "postalcode='" & Request.Form("postalcode") & "',"
sql=sql & "country='" & Request.Form("country") & "'"
sql=sql & " WHERE customerID='" & cid & "'"
on error resume next
conn.Execute sql
if err<>0 then
response.write("No update permissions!")
else
response.write("Record " & cid & " was updated!")
end if
end if
conn.close
%>
</body>
</html>