Solved: Visual Studio - VB Database Assistance

[Jacob Hilderbrand]

Not really a VBA question, but I figure someone here can assist me. I am creating a database at work for tracking a lot of items. Normally what I would do in this case would be to use Excel and the user interface and Access as the backend DB.

But I want to try to make this an executable file. While I have made these before with Visual Studio, I haven't used a DB to store data and that is where I am having trouble.

Basically I need an example of how to retrieve data from a database and how to transfer Append/Insert it back.

Assuming the following:

Database: DB1.mdb
Tables: Table1
Fields: Field1, Field2, Field3

Can someone get me started on how to retrieve all the data to a collection or recordset or... (suggestions welcome).

Then how to save it back once it has been updated.

Thanks

[Bob Phillips]

Jake,

Here is some code to maintain an Access database using ADO. Should be easily adapted

[vba]

Sub AddData()
Dim oConn As Object
Dim oRS As Object
Dim sSQL As String

Set oConn = CreateObject("ADODB.Connection")
oConn.Open = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=" & "c:\bob.mdb"

sSQL = "INSERT INTO Contacts (FirstName, LastName,Phone, Notes) " & _
" VALUES ('Bob','Phillips','01202 345678','me')"
oConn.Execute sSQL

oConn.Close
Set oConn = Nothing
End Sub

Sub GetData()
Const adOpenForwardOnly As Long = 0
Const adLockReadOnly As Long = 1
Const adCmdText As Long = 1
Dim oRS As Object
Dim sConnect As String
Dim sSQL As String
Dim ary

sConnect = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=" & "c:\bob.mdb"

sSQL = "SELECT * From Contacts"
Set oRS = CreateObject("ADODB.Recordset")
oRS.Open sSQL, sConnect, adOpenForwardOnly, _
adLockReadOnly, adCmdText

' Check to make sure we received data.
If Not oRS.EOF Then
ary = oRS.getrows
MsgBox ary(0, 0) & " " & ary(1, 0) & ", " & ary(2, 0)
Else
MsgBox "No records returned.", vbCritical
End If

oRS.Close
Set oRS = Nothing
End Sub

Sub UpdateData()
Const adOpenForwardOnly As Long = 0
Const adLockReadOnly As Long = 1
Const adCmdText As Long = 1
Dim oConn As Object
Dim oRS As Object
Dim sConnect As String
Dim sSQL As String
Dim ary

sConnect = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=" & "c:\bob.mdb"

sSQL = "SELECT * From Contacts"
Set oRS = CreateObject("ADODB.Recordset")
oRS.Open sSQL, sConnect, adOpenForwardOnly, _
adLockReadOnly, adCmdText

' Check to make sure we received data.
If oRS.EOF Then
MsgBox "No records returned.", vbCritical
Else
sSQL = "UPDATE Contacts " & _
" SET Phone = 'None' " & _
"WHERE FirstName = 'Bob' AND LastNAme = 'Phillips'"
oRS.ActiveConnection.Execute sSQL

sSQL = "SELECT * From Contacts"
oRS.ActiveConnection.Execute sSQL
ary = oRS.getrows
MsgBox ary(0, 0) & " " & ary(1, 0) & ", " & ary(2, 0)
End If


oRS.Close
Set oRS = Nothing
End Sub
[/vba]

[Jacob Hilderbrand]

I got all of those to work.

Thanks