摘要： We recently had a project reading data from a Oracle database using 'Microsoft OLE DB Provider for Oracle'. But since both of our database and OS are in 64bit version, we usually encoutered an error below: SSIS Error Code DTS_E_OLEDB_NOPROVIDER_64BIT_ERROR. The requested OLE DB provider MSDAORA.1 is not registered -- perhaps no 64-bit provider is available. 阅读全文