To avoid this, a web developer must
With ASP, you use ADODB and either an OLEDB or OBDC data connection to interact with MS Access databases. As the OLEDB driver is much, much faster it is the most common method.
Fortunately, ADODB and OLEDB allow you to use parameterized SQL statement with MS Access database files. [It gets better]
| Number of Records: 1 | ||||||
| ID | Company | Address | City | ST | ZipCode | Phone |
| 2 | The Boeing Company | 100 N. Riverside Plaza | Chicago | IL | 60606-1596 | 312-544-2000 |
<!--METADATA TYPE="typelib" uuid="00000205-0000-0010-8000-00AA006D2EA4" -->
<%
Dim conn, cmd, rs, command, param, companyID, item, htmlOut
' Did we POST the form?
if LCase(Request.ServerVariables("HTTP_METHOD")) = "post" then
' Not much in the way of filtering, but it will do for this example
companyID = CInt(Request.Form("id"))
else
companyID = 1
end if
' a string with which we will create the HTML for a table to hold the results
htmlOut = ""
' Note the use of @id, that's the parameter
command = "SELECT id, company, type, address, address1, city, state, postalCode, phoneNumber "
command = command & "FROM companys WHERE (id = @id);"
Set cmd = Server.CreateObject("ADODB.Command")
Set conn = Server.CreateObject("ADODB.Connection")
Set rs = Server.CreateObject("ADODB.Recordset")
conn.open Application("examples")
Set cmd.ActiveConnection = conn
' This is where we tell ADODB what our parameter is, (an Integer), it's maximum allowed length
' and it's value, from out variable companyID
'
' Doing this means our value is only used as variable to compare against the ID column
' and can not be executed as in-line SQL
Set param = cmd.CreateParameter("id",adInteger,adParamInput,CLng(8),companyID)
' We must add our parameter to the command objects Parameters collection
cmd.Parameters.Append param
' We also must assign our SQL command to the ADODB command object.
cmd.CommandText = command
' Now we open a record set using the command object we prepared.
rs.Open cmd,,adOpenStatic
' From here down it is similar as any other data access method.
if NOT (rs.eof AND rs.eof) then
htmlOut = "<table><thead><tr><td colspan="""& rs.fields.count &""">"
htmlOut = htmlOut & "Number of Records: "& rs.recordcount
htmlOut = htmlOut & "</td></tr></thead><tbody><tr>"
for each item in rs.fields
htmlOut = htmlOut & "<td>"& item.name &"</td>"
next
htmlOut = htmlOut & "</tr><tr>"
for each item in rs.fields
htmlOut = htmlOut & "<td>"& item &"</td>"
next
htmlOut = htmlOut & "</tr></tbody></table>"
end if
' clean up
rs.close
Set rs=nothing
conn.close
Set conn=nothing
Set param = nothing
Set cmd = nothing