many times have a need to get information how export (dmp) file was created (what nls setup).
The following PL/SQL code enables you to identify the character set of a Data Pump file:
DECLARE
et_directory_name VARCHAR2(30) := '';
-- for example, 'DATA_PUMP_DIR'
et_file_name VARCHAR2(4000) := '';
-- for example, 'EXPDAT.DMP'
et_file_info ku$_dumpfile_info;
et_file_type NUMBER;
BEGIN
dbms_output.put_line('Scanning...');
dbms_datapump.get_dumpfile_info
( filename => et_file_name
, directory => et_directory_name
, info_table => et_file_info
, filetype => et_file_type );
FOR i IN et_file_info.FIRST..et_file_info.LAST LOOP
IF et_file_info.EXISTS(i) THEN
IF et_file_info(i).item_code = 11 THEN
dbms_output.put_line( 'Character set of the file is ' ||
et_file_info(i).value );
END IF;
END IF;
END LOOP;
END;
Hope this helps anyone.
Cheers!