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How would you return the values when calling a Sybase stored procedure call ?

I am developing an Access mdb application using Access as the front end and I call a sybased stored procedure named sp3D_GetListOfDocuments. My code is the Attach Code Snippet.

How would you modify this code to execute the stored procedure that returns
a result set which is comprised of the following 3 columns:
1) MailID
2) NoOfPages
3) NoOfAttributes
This stored procedure does not require any parameters.

My goal is to load the result set records by APPENDING THEM into the table tblNameAddressMod.

In the following Attach Code Snippet, the table tblNameAddressMod has the same 3 fields:

1) MailID
2) NoOfPages
3) NoOfAttributes

For Example, the result set could have the following values:
------------------------------------------------------------------------

MailID NoOfPages NoOfAttributes
----------------- ---------------- -------------------
200707091208 1 3
200707091235 1 3
200707091356 1 3

Private Sub Command9_Click()
Dim com As ADODB.Command
Dim recNameAdress As ADODB.Recordset
Dim cmd As ADODB.Command
Dim oConn
Dim strMailID As String
Dim strNoOfPages As String
Dim strNoOfAttributes As String
 
DoCmd.Hourglass True
On Error Resume Next
Set oConn = CreateObject("ADODB.Connection")
oConn.Open "DSN=N_DIG_MAIL;" & _
 "Uid=PC;" & _
 "Pwd=po"
 
Dim rst As ADODB.Recordset
Set rst = New ADODB.Recordset
 
rst.Open "SELECT MailID FROM tblNameAddressMod", CurrentProject.Connection
 
Set cmd = New ADODB.Command
With cmd
    .ActiveConnection = oConn
    .CommandType = adCmdText
    .CommandText = "exec sp3D_GetListOfDocuments"
    Set recNameAdress = .Execute
End With
 
strMailID = recNameAdress("MailID")
strNoOfPages = Nz(recNameAdress("NoOfPages"), " ")
strNoOfAttributes = Nz(recNameAdress("NoOfAttributes"), " ")
 
CurrentProject.Connection.Execute "INSERT INTO tblNameAddress Set MailID ='" & Replace(strMailID, "'", "''") & "', " & _
"NoOfPages ='" & strNoOfPages & "', NoOfAttributes ='" & strNoOfAttributes & "    "
 
recNameAdress.Close

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borki

Hi Zimmer9

I think you were almost there!

You can directly execute a stored procedure (SP) using ADO with MS SQL (I don't have Sybase).

You did not specify the data types of the columns returned. I would have thought that the 2nd and 3rd one were numeric. You need to watch out for conversion problems.

While your approach to build a SQL Insert statement is valid, I prefer to use a recordset.

Hope that helps

Felix Burkhard

Private Sub test()
   Dim oConn As New ADODB.Connection
   Dim oCmd As New ADODB.Command
   Dim recSP As New ADODB.Recordset
   Dim recMod As New ADODB.Recordset
    
   DoCmd.Hourglass True
   On Error Resume Next
   
   'Prepare command object with SP
   oConn.ConnectionString = "DSN=N_DIG_MAIL;Uid=PC;Pwd=po"
   With oCmd
       .ActiveConnection = oConn
       .CommandType = adCmdStoredProc
       .CommandText = "sp3D_GetListOfDocuments"
   End With
       
   'Open command object - executes SP
   recSP.Open oCmd
   If recSP.EOF Then
      'Handle error...
      Exit Sub
   End If
   
   'Open local dataset
   recMod.Open "tblNameAddressMod", CurrentProject.Connection, adOpenForwardOnly, adLockOptimistic, adCmdTable
   
   'Loop through records retrieved from SP
   Do While Not recSP.EOF
      'Copy data from SP output into new local record
      recMod.AddNew
      recMod!MailID = recSP!MailID
      recMod!NoOfPages = Nz(recSP!NoOfPages, " ")
      recMod!NoOfAttributes = Nz(recSP!NoOfAttributes, " ")
      recMod.Update
      'Advance cursor to next row
      recSP.MoveNext
   Loop
   recSP.Close
   recMod.Close
   Set recSP = Nothing
   Set recMod = Nothing
   DoCmd.Hourglass False
End Sub

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zimmer9

ASKER

I am a user who needs to access a Sybase database and call a stored procedures exposed to me to get information as a Sybase result set. I don't have any choice in the matter.

zimmer9

ASKER

Can anyone confirm whether or not the solution above proposed by Felix should work as is
using ADO with Sybase ? I have tried implementing it and as I step throught the execution I get to the following line in which the recordset is opened and the EOF is reached immediatately and the subroutine exits.

'Open command object - executes SP
recSP.Open oCmd
If recSP.EOF Then
'Handle error...
Exit Sub
End If

thanks,
zimmer9

borki

Hi Zimmer9

I just re-checked my code, and I think I forgot to open the connection. Try to add these 2 lines

10a oConn.Provider = "ASEOLEDB"
11a oConn.Open

Let me know how you go

zimmer9

ASKER

Where is the linkage between the result set from the execution of stored procedure sp3D_GetListOfDocuments and the record set recSP ?

By the way, I use ODBC with DataDirect 4.0 Sybase Wire Protocol driver.

zimmer9

ASKER

Don't I need a .Execute line in the following With/End With ?

With oCmd
.ActiveConnection = oConn
.CommandType = adCmdStoredProc
.CommandText = "sp3D_GetListOfDocuments"
End With

ASKER CERTIFIED SOLUTION

borki

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