1

Access 2003 データベースへの接続を処理するクラスがあります。Access 07/10 .accdb ファイルに対してのみ同じことをセットアップしたいと思います。どんな助けでも大歓迎です！ありがとうございました！

これが私の参照のリストとクラスオブジェクトのコピーです

参考文献:

  • Microsoft Access 14.0 オブジェクト ライブラリ
  • Microsoft DAO 3.6 オブジェクト ライブラリ

接続クラス:

Option Explicit

Private Const DbFile = "\\server\folders\Report.mdb"
Dim OpenConn As DAO.Database
Dim ObjAccess As Object

Private Sub Class_Initialize()
    On Error Resume Next
    Set OpenConn = DAO.OpenDatabase(DbFile)
    If Err.Number = 3024 Then MsgBox "Check connection string in the VBA StaticClass object", vbOKOnly

    Set ObjAccess = CreateObject("Access.Application")
    ObjAccess.Visible = False
    ObjAccess.OpenCurrentDatabase (DbFile)
End Sub

Public Function runSQL(ByVal sql As String) As Recordset
    Set runSQL = OpenConn.OpenRecordset(sql)
End Function

Public Function runVolumeReport(ByVal inMacro As String)
    ObjAccess.DoCmd.RunMacro inMacro
End Function

Public Function closeResources()
    Set ObjAccess = Nothing
    OpenConn.Close
End Function
4

3 に答える 3

1

There is an issue in Class_Initialize.

On Error Resume Next
Set OpenConn = DAO.OpenDatabase(DbFile)
If Err.Number = 3024 Then MsgBox "Check connection string in the VBA StaticClass object", vbOKOnly

Because of On Error Resume Next, any error other than 3024 ("Could not find file") will pass silently and OpenConn will not be set as you intend. Later when you attempt to use OpenConn, you will trigger another error. And, in a comment, you reported you do get another error with this line:

Set runSQL = OpenConn.OpenRecordset(sql)

Unfortunately, due to On Error Resume Next, we don't know why OpenDatabase failed leaving OpenConn unset. Since ObjAccess seems to work as an Access application object, you could try setting OpenConn to ObjAccess.CurrentDb.

Private Sub Class_Initialize()
    Set ObjAccess = CreateObject("Access.Application")
    ObjAccess.Visible = False
    ObjAccess.OpenCurrentDatabase DbFile
    Set OpenConn = ObjAccess.CurrentDb
End Sub

OTOH, you may be able to dispense with OpenConn entirely if you change your runSQL function like this ...

Public Function runSQL(ByVal sql As String) As Recordset
    'Set runSQL = OpenConn.OpenRecordset(sql) '
    Set runSQL = ObjAccess.CurrentDb.OpenRecordset(sql)
End Function
于 2012-08-29T15:39:08.487 に答える
0

accdb (SQL Server) テーブルを開く 1 つの方法は次のとおりです。

Dim cmd As New ADODB.Command
Dim rs As ADODB.Recordset
Dim strSQL As String

strSQL = "select SomeStuff from SomeTable"

cmd.ActiveConnection = CurrentProject.Connection
cmd.CommandText = strSQL ' you can put in the SQL directly, 
                         ' but I find the string easier to manipulate away from the .CommandText
Set rs = cmd.Execute

My References (Access 2010):
参考文献一覧
追加する必要がある重要なものは、Microsoft ActiveX Data Objects XX Library だと思います。

于 2012-08-29T14:15:18.713 に答える
0 
Imports System.Data.OleDb

Public Class Form1
    Dim strSQL As String
    Dim ds As New DataSet
    Dim strConnection As String
    Dim DBconnection As New OleDbConnection
    Dim oledbAdapter As New OleDbDataAdapter
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
strConnection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=P:\Informatica\April - Juni\Acces\db-games.accdb"
        DBconnection = New OleDbConnection(strConnection)
        strSQL = "SELECT * from tbl_games"

        Try
            DBconnection.Open()
            oledbAdapter = New OleDbDataAdapter(strSQL, DBconnection)
            oledbAdapter.Fill(ds)
            DataGridView1.DataSource = ds.Tables(0)
        Catch ex As Exception
            MsgBox(ex.ToString)
        End Try
        DBconnection.Close()
    End Sub
End Class

Dim con As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=P:\Informatica\Acces\db_Games.accdb;Persist Security Info=False") Dim cmd As New OleDbCommand

    con.Open()

    cmd.Connection = con

    cmd.CommandText = "INSERT INTO tbl_gerne(Omschrijving) VALUES('adventure')"
    cmd.ExecuteNonQuery()

    con.Close()
于 2015-06-11T14:54:52.583 に答える