VB如何连接ORACLE数据库

'打开数据库

Public Sub OpenOraDB()
On Error GoTo ToExit
OraDB_Open = False
Set OraDB = New ADODB.Connection
OraConstr = "Provider=OraOLEDB.Oracle.1;Password=" & strOraPWD & ";User ID=" & strOraUser & ";Data Source=" & OraDBNetName & ";Persist Security Info=False"
OraDB.CursorLocation = adUseServer

OraDB.Open OraConstr
OraDB_Open = True

Exit Sub
ToExit:
'MsgBox "连接数据库服务器错误，您可以在网络正常后继续使用。",vbInformation , "错误信息"
OraDB_Open = False
End Sub

'关闭数据库

Public Sub CloseOraDB()
If OraDB_Open = True Then
If (OraDB.State = adStateOpen) Then
OraDB.Close
Set OraDB = Nothing
OraDB_Open = False
End If
End If
End Sub

'打开数据集，写入数据

Set OraRS = New ADODB.Recordset
OraRS.ActiveConnection = OraDB
OraRS.CursorLocation = adUseServer
OraRS.LockType = adLockBatchOptimistic
strOraRS = "select * from " & OraDBtablename
OraRS.Open strOraRS, OraDB, adOpenStatic, adLockOptimistic
OraRS.AddNew
OraRS.Fields("PID") = strOraPID
OraRS.Fields("pname") = strName").Value
OraRS.Fields("p易做图") = strP易做图
OraRS.Update

'关闭数据集

OraRS.Close
Set OraRS = Nothing

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