1.查看分区表分区字段

select * from dba_part_key_columns where name='LOAN_UN_APP_INFO_CLOB' and owner ='OLS'; 
  
 OWNER                 NAME                          OBJECT_TYPE      COLUMN_NAME 
-------------------- ------------------------------ ----------        ----------  
OLS                   LOAN_UN_APP_INFO_CLOB           TABLE           OLS_DATA_DATE


2.查看分区信息
select PARTITION_NAME,HIGH_VALUE from dba_tab_partitions where TABLE_OWNER = 'OLS' and TABLE_NAME = 'LOAN_UN_APP_INFO_CLOB' ;

PARTITION_NAME                                                             HIGH_VALUE 
----------------------------------------------------------------  ---------------------------------------------------------------- -------------------------------------------------------------------------------- 
P1_LUAICLOB_01                                                         TO_DATE(' 2020-09-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN') 
SYS_P14044                                                             TO_DATE(' 2021-01-08 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN') 
SYS_P14082                                                             TO_DATE(' 2021-01-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN') 
SYS_P14119                                                             TO_DATE(' 2021-01-10 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN') 

省略

3.导出分区

可以采用query方式，也可以导出具体分区，本次采用导出具体分区

select TABLE_OWNER||'.'||TABLE_NAME||':'||PARTITION_NAME from dba_tab_partitions where TABLE_OWNER = 'OLS' and TABLE_NAME = 'LOAN_UN_APP_INFO_CLOB'; 

OLS.LOAN_UN_APP_INFO_CLOB:P1_LUAICLOB_01
OLS.LOAN_UN_APP_INFO_CLOB:SYS_P14044 
OLS.LOAN_UN_APP_INFO_CLOB:SYS_P14082 
OLS.LOAN_UN_APP_INFO_CLOB:SYS_P14119

省略

nohup expdp \" / as sysdba \" dumpfile=ols_LOAN_UN_APP_INFO_CLOB_BAK20210108.dmp directory=yearend logfile=ols_LOAN_UN_APP_INFO_CLOB_BAK20210108.log  logtime=all cluster=no COMPRESSION=all tables=OLS.LOAN_UN_APP_INFO_CLOB:SYS_P14044 exclude=statistics,index  & 
nohup expdp \" / as sysdba \" dumpfile=ols_LOAN_UN_APP_INFO_CLOB_BAK20210109.dmp directory=yearend logfile=ols_LOAN_UN_APP_INFO_CLOB_BAK20210109.log  logtime=all cluster=no COMPRESSION=all tables=OLS.LOAN_UN_APP_INFO_CLOB:SYS_P14082 exclude=statistics,index  & 

省略

当插入的时候，第一个正常插入，后面的增加参数 table_exists_action=append 来导入