方法如下步骤操作：
1、打开VBA编辑器，在菜单中点选“工具”，“引用”
2、确保“Microsoft ActiviteX Data Objects 2.8 Library”和“Microsoft ActiviteX Data ObjectS Recordset 2.8 Library”被勾选上。
建立连接过程，代码如下：
复制代码代码如下:
Public Sub ConOra()
On Error GoTo ErrMsg:
Dim ConnDB As ADODB.Connection
Set ConnDB = New ADODB.Connection
Dim ConnStr As String
Dim DBRst As ADODB.Recordset
Set DBRst = New ADODB.Recordset
Dim SQLRst As String
Dim OraOpen As Boolean
OraOpen = False
OraID="Orcl" 'Oracle数据库的相关配置
OraUsr="user"
OraPwd="password"
ConnStr = "Provider = MSDAORA.1Password=" & OraPwd & _
"User ID=" & OraUsr & _
"Data Source=" & OraID & _
"Persist Security Info=True"
ConnDB.CursorLocation = adUseServer
ConnDB.Open ConnStr
OraOpen = True '成功执行后，数据库即被打开
'MsgBox "Connect to the oracle database Successful!"， vbInformation， "Connect Successful"
DBRst.ActiveConnection = ConnDB
DBRst.CursorLocation = adUseServer
DBRst.LockType = adLockBatchOptimistic
SQLRst = "Select * From TstTab"
DBRst.Open SQLRst， ConnDB， adOpenStatic， adLockBatchOptimistic
DBRst.MoveFirst
Exit Function
ErrMsg:
OraOpen = False
MsgBox "Connect to the oracle database fail ，please check!"， vbCritical， "Connect fail!"
End Function
Public Sub ConOra()
On Error GoTo ErrMsg:
Dim ConnDB As ADODB.Connection
Set ConnDB = New ADODB.Connection
Dim ConnStr As String
Dim DBRst As ADODB.Recordset
Set DBRst = New ADODB.Recordset
Dim SQLRst As String
Dim OraOpen As Boolean
OraOpen = False
OraID="Orcl" 'Oracle数据库的相关配置
OraUsr="user"
OraPwd="password"
ConnStr = "Provider = MSDAORA.1Password=" & OraPwd & _
"User ID=" & OraUsr & _
"Data Source=" & OraID & _
"Persist Security Info=True"
ConnDB.CursorLocation = adUseServer
ConnDB.Open ConnStr
OraOpen = True '成功执行后，数据库即被打开
'MsgBox "Connect to the oracle database Successful!"， vbInformation， "Connect Successful"
DBRst.ActiveConnection = ConnDB
DBRst.CursorLocation = adUseServer
DBRst.LockType = adLockBatchOptimistic
SQLRst = "Select * From TstTab"
DBRst.Open SQLRst， ConnDB， adOpenStatic， adLockBatchOptimistic
DBRst.MoveFirst
Exit Function
ErrMsg:
OraOpen = False
MsgBox "Connect to the oracle database fail ，please check!"， vbCritical， "Connect fail!"
End Function
可以根据需要调整SQL语句，获取相关数据，并输出到Excel完成数据处理
