'sqlplus' is not Recognized as an Internal or External Command, Operable Program or Batch File
During the import into Oracle when the objects or data are loaded one or both of the following messages arises: “'sqlplus' is not recognized as an internal or external command, operable program or batch file” or “'sqlldr' is not recognized as an internal or external command, operable program or batch file”.
The main cause of the problem is that the bin directory for the target Oracle is not specified in the Wizard.
Please specify the path to the BIN directory on the “Specify Import Options” page. Please see the picture below for the example of the “BIN directory:” option specification: