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Access, ADO and Stored Procedures

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It is possible to create queries in Access and use them in ASP. Here is some sample ASP. You will probably wish to remove the comments.

   <%@ Language=VBScript %>
   <%
   Option Explicit
   
   'A bit of storage space.
   Dim cmd, rs, cn, recs, i
   
   'Some constants to make life easier.
   Const adCmdStoredProc = 4
   Const adParamInput = 1
   Const adVariant = 12
   Const adInteger = 3
   Const adExecuteNoRecords  = 128
   
   'Set up a command object
   Set cmd = Server.CreateObject ("ADODB.Command")
   
   'The connection string
   cn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" &_
         Server.MapPath("..\LTD.mdb") & ";Persist Security Info=False"
   
   'It would be better to use a connection object if you have
   'a lot of commands to run, but here is a connection for the command ...
   cmd.ActiveConnection = cn
   
   '... a stored query ...
   
   '==========================
   'SQL for stored query
   ' PARAMETERS [Key] Short, [NewData] Text ( 255 );
   ' UPDATE tblSampleFields t
   ' SET t.aText = [NewData]
   ' WHERE t.aAuto=[Key]
   '==========================
   cmd.CommandText = "updLTD"
   
   ' ... yep, stored query ...
   cmd.CommandType = adCmdStoredProc
   
   ' ... and some parameters.
   'http://www.w3schools.com/ADO/met_comm_createparameter.asp
   'Make sure you get the type right, you will find details here:
   'http://www.w3schools.com/ADO/ado_datatypes.asp
   'You will find direction here:
   'http://www.w3schools.com/ado/prop_para_direction.asp
   'Key, NewData : Name
   'adInteger, adVariant : Type
   'adParamInput : Direction
   '50 : Size
   '2, 'New Data' : Value
   
   cmd.Parameters.Append cmd.CreateParameter("Key", adInteger, adParamInput, , 2)
   cmd.Parameters.Append cmd.CreateParameter("NewData", adVariant, adParamInput, 50, "New data")
   
   'Off we go.
   'recs : return for records affected
   'adExecuteNoRecords : no records are returned by this query, so this increases efficiency
   'http://www.w3schools.com/ADO/ado_ref_command.asp
   cmd.Execute recs,,adExecuteNoRecords
   
   'Did it work?
   Response.Write "Records updated: " & recs & "<br><br>"
   
   
   'Another command, but with a select query
   '==========================
   'SQL for stored query
   ' PARAMETERS [Key] Short;
   ' SELECT t.aAuto, t.aText
   ' FROM tblSampleFields AS t
   ' WHERE t.aAuto=[Key];
   '==========================
   cmd.CommandText = "qryLTD"
   cmd.CommandType = adCmdStoredProc
   cmd.Parameters.Append cmd.CreateParameter ("Key",adInteger,adParamInput ,,1)
   
   'This one goes to a recordset, so we can
   'get the data
   Set rs = Server.CreateObject ("ADODB.Recordset")
   Set rs = cmd.Execute
   
   'List of fields (not for real life)
   For i=0 To rs.Fields.Count-1
   	Response.Write rs.fields(i).Name & " "
   Next
   Response.Write "<br>"
   
   'List of records
   Do While Not rs.EOF
   
       For i=0 To rs.Fields.Count-1
          Response.Write rs.fields(i) & " "
       Next
       rs.MoveNext
   
       Response.Write "<br>"
   
   Loop
   %>

406 Rating: 2.3/5 (3 votes cast)