Clever Geek Handbook

Database Management Using the Properties Window

Please list a procedure in which a visual backend can access a database using data management and Active x Data Object (ADO)?

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This is a big old topic, but below are some simple examples for reading a recordset ...

Dim con As New ADODB.Connection
con.connectionstring = "My Connection String" -- see ConnectionStrings.com for examples

Dim rs As New ADODB.Recordset
con.Open
rs.Open "SELECT name FROM MyTable", con, adOpenForwardOnly, adLockReadOnly

Do While Not rs.EOF
    Debug.Print rs.fields("name")
rs.movenext
Loop

rs.Close
Set rs = Nothing
con.Close
Set con = Nothing


This will work with any database that you have a driver on, but if you are using a system that supports stored procedures, you are better off using these ...

Dim con As New ADODB.Connection
con.ConnectionString = "My Connection String" -- see ConnectionStrings.com for examples

Dim cmd As New ADODB.Command
cmd.CommandText = "MySpName"
cmd.CommandType = adCmdStoredProc

Dim param1 As New ADODB.Parameter
With param1
    .Name = "@MyParam"
    .Type = adInteger
    .Direction = adParamInput
    .Value = 10
End With

cmd.Parameters.Append param1
Set param1 = Nothing

Dim rs As ADODB.Recordset
con.Open
cmd.ActiveConnection = con

Set rs = cmd.Execute

Do While Not rs.EOF
    Debug.Print rs.Fields("name")
rs.movenext
Loop

rs.Close
Set rs = Nothing
con.Close
Set con = Nothing
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