oracle分區表備份恢復

-- oracle分區表備份恢復  
--1，測試數據：  
drop tablespace tbs2 including contents and datafiles;  
create tablespace tbs2 datafile '/ora01/app/oracle/oradata/prodc/tbs1.dbf' size 10M;  
create user loge1 identified by china default tablespace tbs2;  
grant connect,resource,dba to loge;  
drop tablespace tbs2 including contents and datafiles;  
create tablespace tbs2 datafile '/ora01/app/oracle/oradata/prodc/tbs1.dbf' size 10M;  
create user loge1 identified by china default tablespace tbs2;  
grant connect,resource,dba to loge1;  
  
-- 使用帳號loge登錄執行  
create table p_t1 (id int,datatime date)  
partition by range(datatime)  
(partition p1 values less than (to_date('2016-01-01','yyyy-mm-dd')),  
partition p2 values less than (to_date('2016-02-01','yyyy-mm-dd')),  
partition p3 values less than (to_date('2016-03-01','yyyy-mm-dd')));  
  
insert into p_t1 values(1,to_date('2016-01-01','yyyy-mm-dd'));  
insert into p_t1 values(2,to_date('2016-02-01','yyyy-mm-dd'));  
insert into p_t1 values(3,to_date('2016-03-01','yyyy-mm-dd'));  
commit;  
  
-- 查看  
  
select table_name,partition_name,high_value from user_tab_partitions where table_name='P_T1'  
select * from p_t1;  
select * from p_t1 partition(p1);  
select * from p_t1 partition(p2);  
  
-- 建立間隔分區  
  
select table_name,partition_name,high_value from user_tab_partitions where table_name='P_T2'  
create table p_t2 (id int,datatime date)  
partition by range(datatime)  
interval(numtoyminterval(1,'MONTH'))  
(partition part0601 values less than (to_date('2016-02-01','yyyy-mm-dd')));  
  
  
--不容許間隔分區添加分區  
alter table p_t2 add partition part0602 values less than (to_date('2016-03-01','yyyy-mm-dd'));  
ORA-14760: ADD PARTITION is not permitted on Interval partitioned objects  
  
-- 若是非間隔分區添加分區，好比大於最後一個分區，不然報錯  
alter table p_t1 add partition part0602 values less than (to_date('2016-03-01','yyyy-mm-dd'));  
ORA-14074: partition bound must collate higher than that of the last partition  
  
-- 拆分分區  
alter table p_t1 split partition p3 at(to_date('2016-02-15','yyyy-mm-dd')) into (partition p31,partition p32);  
-- 合併分區  
alter table p_t1 merge partitions p31,p32 into partition p3;  
  
-- 2，執行導出導入  
-- exp導出  
exp loge/china tables=p_t1 file=/home/oracle/bak/exp_table.dmp  
exp loge/china tables=p_t1:p1 file=/home/oracle/bak/exp_table_p1.dmp  
-- imp導入  
imp loge1/china tables=p_t1 file=/home/oracle/bak/exp_table.dmp  
imp loge/china tables=p_t1:p2 file=/home/oracle/bak/exp_table_p1.dmp  
  
-- expdp導出  
expdp loge/china directory=dump_dir dumpfile=dump_table.dmp tables=p_t1  
-- expdp導入  
impdp loge1/china directory=dump_dir dumpfile=dump_table.dmp tables=loge.p_t1   
content=metadata_only remap_schema=loge:loge1 remap_tablespace=tbs1:tbs2  
impdp loge1/china directory=dump_dir dumpfile=dump_table.dmp tables=loge.p_t1   
content=data_only remap_schema=loge:loge1 remap_tablespace=tbs1:tbs2  
表存在的幾種處理：TABLE_EXISTS_ACTION APPEND, REPLACE, [SKIP] 和 TRUNCATE  
  
注意：  
若是是本身建立的分區好比按照job建立的分區，注意建表的ddl，不然導入失敗