Link to home
Start Free TrialLog in
Avatar of wilko100
wilko100

asked on

VB6 running access query

Hi
Im new to VB not sure how to run an access query through VB6
I have a button on a form that i want to update a table in access by using a query i created in access
how easy is it to get VB to run the query at the click if the button?

maybe something like:
Private Sub btnUpdate_Click()
Dim rs As Recordset
'Dim qd As QueryDef
Dim mydb As Database


Set mydb = db.OpenRecordset("queryname")

'Set rs = db.OpenRecordset
'If rs.RecordCount > 0 Then
    'Do While Not rs.EOF
      'rs.MoveNext
    'Loop
  'End If
  'rs.Close
  'Set rs = Nothing
 
'Exit Sub


End Sub
Avatar of Shanmuga Sundaram D
Shanmuga Sundaram D
Flag of India image

Private Sub btnUpdate_Click()
Dim rs As Recordset
dim mydb As Database

private sub command1_click
Set mydb = db.OpenRecordset("c:\your database name")
Set rs = db.OpenRecordset("select * from yourtablename where field ='" & text1.text & "'"
If rs.RecordCount > 0 Then
rs.fields("yourfield")=text1.text
rs.updae
rs.Close
endif
Set rs = Nothing
end sub
 
'Exit Sub


End Sub
private sub btnUpdate_Click_click
Dim rs As Recordset
dim mydb As Database
Set mydb = db.OpenRecordset("c:\your database name")
Set rs = db.OpenRecordset("select * from yourtablename where field ='" & text1.text & "'"
If rs.RecordCount > 0 Then
rs.fields("yourfield")=text1.text
rs.updae
rs.Close
endif
Set rs = Nothing
End Sub
You can substitute the "Select.... " codes of the previous examples and simply enter the Query name created in Access.  This helps if your Access query includes joins and such.  Instead of entering all this as a long SQL string in VB, you simply open the query as a recordset (just like a table).
You will still need a WHERE (perhaps) and such..... but it's easier.

Scott C
Avatar of wilko100
wilko100

ASKER

thanks for the reply yeah there makes sense
however when i enter in my database name then run it, it throughs an error:
Runtime error 3078
Microsoft jet engine cannot find the input table or query
C:\DatabaseName.mdb' make sure it exists
but its there!!
this is the code:
Private Sub btnUpdate_Click()
Dim rs As Recordset
Dim mydb As Database

Set mydb = db.OpenRecordset("C:\DatabaseName") *fails here*
Set rs = db.OpenRecordset("QueryName")
If rs.RecordCount > 0 Then
'rs.Fields("yourfield") = Text1.Text
rs.Update
rs.Close
End If
Set rs = Nothing
End Sub                                            Its doing my nut in!!
Change this line:

   Set mydb = db.OpenRecordset("C:\DatabaseName") *fails here*

To:

   Set mydb = DBEngine.OpenDatabase("C:\DatabaseName")
entered that and now gets past that but now it failing on the line below!

Set rs = db.OpenRecordset("QueryName")

says error runtime error 3919
invalid operation

Why why! ? lol




ASKER CERTIFIED SOLUTION
Avatar of Shanmuga Sundaram D
Shanmuga Sundaram D
Flag of India image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
*SORTED* (excuse the indentation hehe)
   Private Sub btnUpdate_Click()
    Dim rA As Integer
    Dim db As New ADODB.Connection  
   
   db.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source = C:\dataBaseName.mdb"
   db.Open
   db.Execute "INSERT INTO TableA SELECT * FROM TableB", rA
    If rA > 0 Then
      MsgBox "Completed!!"
      End If
      db.Close
      Set db = Nothing
End Sub

Thanks for the help!! much appriciated