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