View | Toad Options | Executables | SQL*Loader pointing to an old client version sqlldr.exe (10.2.0.1) where client connection is via an 11g client
対策
In order to use SQL*Loader within Toad, a Full Oracle Client (not Instant) is required and the executable option should be pointing to the same Oracle Client Version that Toad is using to connect with. See KB Article 1570 for further information
