The Data Pump Export utility is started using the expdp command. The characteristics of the export operation are determined by the Export parameters you specify. These parameters can be specified either on the command line or in a parameter file.
Do not start Export as SYSDBA, except at the request of Oracle technical support. SYSDBA is used internally and has specialized functions; its behavior is not the same as for general users.
The following sections contain more information about invoking Export: