Oracle Error Message
SQL*Loader-00488: string not a named collection type for filler field string
Reason for the Error
The FILLER option was specified for a VARRAY or NESTED TABLE field in the SQL Loader control file. However, the type name specified for the field is not the name of a VARRAY or NESTED TABLE type.
Solution
Verify that the correct type name was specified. If the type is defined in a different schema, also verify that the correct schema name is specified.