Solved

VB6 running access query

Posted on 2007-12-06
8
1,305 Views
Last Modified: 2013-12-25
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
0
Comment
Question by:wilko100
8 Comments
 
LVL 17

Expert Comment

by:Shanmuga Sundaram
Comment Utility
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
0
 
LVL 17

Expert Comment

by:Shanmuga Sundaram
Comment Utility
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
0
 
LVL 20

Expert Comment

by:clarkscott
Comment Utility
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
0
 

Author Comment

by:wilko100
Comment Utility
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!!
0
Maximize Your Threat Intelligence Reporting

Reporting is one of the most important and least talked about aspects of a world-class threat intelligence program. Here’s how to do it right.

 
LVL 12

Expert Comment

by:jkaios
Comment Utility
Change this line:

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

To:

   Set mydb = DBEngine.OpenDatabase("C:\DatabaseName")
0
 

Author Comment

by:wilko100
Comment Utility
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




0
 
LVL 17

Accepted Solution

by:
Shanmuga Sundaram earned 125 total points
Comment Utility
Private Sub btnUpdate_Click()
Dim rs As Recordset
Dim mydb As Database
Set mydb = DBEngine.OpenDatabase("C:\dss.mdb")
Set rs = mydb.OpenRecordset("Select * from table1 where fieldname ='somecontent'")
If rs.RecordCount > 0 Then
rs.Fields("yourfield") = Text1.Text
rs.Update
rs.Close
End If
Set rs = Nothing
End Sub

0
 

Author Comment

by:wilko100
Comment Utility
*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
0

Featured Post

Free Trending Threat Insights Every Day

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

Join & Write a Comment

Have you ever wanted to restrict the users input in a textbox to numbers, and while doing that make sure that they can't 'cheat' by pasting in non-numeric text? Of course you can do that with code you write yourself but it's tedious and error-prone …
Describes a method of obtaining an object variable to an already running instance of Microsoft Access so that it can be controlled via automation.
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…
In Microsoft Access, when working with VBA, learn some techniques for writing readable and easily maintained code.

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now