I am loading data from SQL Server 2008 to oracle ...One of the datatype is Nvarchar ...it is giving problem while loading into datastage ..I am using DRS stage for sql server ...
I believe with DRS you mean Dynamin RDMS stage. Dynamic RDMS has its limits with the size of the datatype. Please check what is the length of the NVARCHAR field. try defining it as long varchar or as ray suggested ODBC stage.
I too had a same problem trying to being BLOB datatype.