At source perform export for tables=SCOTT.SALES, SCOTT.ORDERS
$ expdp \"/ as sysdba\" directory=DATA_PUMP_DIR tables=SCOTT.SALES,SCOTT.ORDERS dumpfile=SCOTT.dmp logfile=SCOTT.log
Preference is to use parameter file vs having to take into consideration and dealing with slash.
Import will rename table SALES to SALES_BACKUP and ORDERS to ORDERS_BACKUP for SCOTT schema.
$ cat impdp_table.par userid="/ as sysdba" directory=DATA_PUMP_DIR dumpfile=SCOTT.dmp remap_table=SCOTT.SALES:SALES_BACKUP remap_table=SCOTT.ORDERS:ORDERS_BACKUP table_exists_action=SKIP
$ impdp parfile=impdp_table.par Import: Release 18.0.0.0.0 - Production on Tue May 19 11:37:51 2020 Version 18.6.0.0.0 Copyright (c) 1982, 2018, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 18c Enterprise Edition Release 18.0.0.0.0 - Production Master table "SYS"."SYS_IMPORT_FULL_01" successfully loaded/unloaded Starting "SYS"."SYS_IMPORT_FULL_01": /******** AS SYSDBA parfile=impdp_table.par Processing object type TABLE_EXPORT/TABLE/TABLE Processing object type TABLE_EXPORT/TABLE/TABLE_DATA . . imported "SCOTT"."ORDERS_BACKUP" 11.02 GB 84493879 rows . . imported "SCOTT"."SALES_BACKUP" 44.60 MB 366568 rows Processing object type TABLE_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX ORA-31684: Object type INDEX:"SCOTT"."ORDERS_PK" already exists ORA-31684: Object type INDEX:"SCOTT"."ORDERS_INDX2" already exists ORA-31684: Object type INDEX:"SCOTT"."ORDERS_INDX1" already exists ORA-31684: Object type INDEX:"SCOTT"."SALES_PK" already exists ORA-31684: Object type INDEX:"SCOTT"."SALES_INDX1" already exists Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/CONSTRAINT ORA-31684: Object type CONSTRAINT:"SCOTT"."ORDERS_PK" already exists ORA-31684: Object type CONSTRAINT:"SCOTT"."SALES_PK" already exists Processing object type TABLE_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS Processing object type TABLE_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS Processing object type TABLE_EXPORT/TABLE/STATISTICS/MARKER Job "SYS"."SYS_IMPORT_FULL_01" completed with 7 error(s) at Tue May 19 11:39:43 2020 elapsed 0 00:01:50
If the intention is to TRUNCATE or MERGE SCOTT.SALES AND SCOTT.ORDERS using BACKUP, then errors can be ignored.
If not, then failed constraints and indexes will need to be created accordingly.
Oracle Data Pump Import – REMAP_TABLE