Table_exists_action option with impdp - oracle database script

TABLE_EXISTS_ACTION OPTION IN IMPDP: TABLE_EXISTS_ACTION Action TO take IF imported OBJECT already exists. VALID keywords ARE: APPEND,
REPLACE, [SKIP]
AND TRUNCATE. TABLE_EXISTS_ACTION=SKIP: This IS the DEFAULT OPTION WITH impdp. I.e IF the the TABLE EXISTS,
                                                                                                    it will skip that table. TABLE_EXISTS_ACTION=APPEND: WHILE importing the TABLE,
                                                                                                                                                                             IF the TABLE EXISTS IN the DATABASE,
                                                                                                                                                                                                        THEN it will append the DATA ON top the EXISTING DATA IN the table. impdp dumpfile=emp_tab.dmp LOGFILE=emp_tab.log directory=VEN table_exists_action=APPEND TABLE_EXISTS_ACTION=TRUNCATE: WHILE importing the TABLE,
                                                                                                                                                                                                                                                                                                                                                                                                                      IF the TABLE EXISTS IN DATABASE,
                                                                                                                                                                                                                                                                                                                                                                                                                                             it will TRUNCATE the TABLE
AND LOAD the data. impdp dumpfile=emp_tab.dmp LOGFILE=emp_tab.log directory=VEN table_exists_action=TRUNCATE TABLE_EXISTS_ACTION=
REPLACE: WHILE importing,
               IF the TABLE EXISTS IN DATABASE,
                                      THEN it will
DROP it
AND recreate it
FROM the DUMP impdp dumpfile=emp_tab.dmp LOGFILE=emp_tab.log directory=VEN table_exists_action=
REPLACE