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Oracle分区表迁移

Jun 07, 2016 pm 05:34 PM
database

有时,我们需要在另一个Oracle服务器上重建一个表,而这个表包含非常多的分区/子分区时,DB Link + CTAS不是个好选择,因为我们需

有时,我们需要在另一个Oracle服务器上重建一个表,而这个表包含非常多的分区/子分区时,DB Link + CTAS不是个好选择,因为我们需要列出所有分区,得到所有分区信息也需要一些时间。这时imp/exp或者Data Pump会是个好的选择。我们分两种情况讨论 

1. 源表空间和目标表空间一致:imp/exp

exp userid=@ parfile=''
--
grants=n
indexes=n
triggers=n
constraints=y
STATISTICS=NONE
LOG=exp.log
tables=
query="where 1=0"

--Import to target database
Login
imp @ file=xxx.dmp tables=''

2. 源表空间和目标表空间不一致:data pump

create directory ext_data AS '/home/oracle/data';
expdp userid=sh@orcl parfile=test1.par

directory=ext_data
EXCLUDE=INDEX,GRANT,TRIGGER,STATISTICS
LOGFILE=test1.log
tables=test1
dumpfile=test1.dmp
query="where 1=0"

impdp sh@orcl parfile=test2_imp.par

directory=ext_data
REMAP_TABLESPACE=sh_data:USERS,sh_data_1:USERS
REMAP_SCHEMA=SH:SCOTT
tables=test2
dumpfile=test2.dmp

 

相关阅读:

浅谈Oracle分区表之范围分区

Oracle分区表使用实例

Oracle分区表 (Partition Table) 的创建及管理

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