Oracle Linked Server query error We have a problem with a query from a SQL Server 2008R2 - 64bit
to an Oracle Linked Server.

We use the Oracle 64-bit driver for Windows.

When we query a certain table we get the following error:


  Msg 7347, Level 16, State 1, Line 1 OLE DB provider 'OraOLEDB.Oracle'
  for linked server 'SERV_VISION2' returned data that does not match
  expected data length for column
  '[SERV_VISION2]..[VISION].[INV_M001].CUS_NM'. The (maximum) expected
  data length is 30, while the returned data length is 24.


The problem seems to be the data in the CUS_NM column.
In the rows where he gives this error the data is like this:

¿¿¿         


So like a question mark but upside down. There doesn't seem to be a problem with the
length of the column, for one reason he can't handle this data I guess.

Did anyone experience this problem?
Anyone a clue how to solve this?
That's most likely an NLS (language) problem and you've got customer names with characters your database cannot handle. You'll need to determine the actual type of the CUS_NM column in the Oracle database.