数据库备份

时间：2014-12-28 19:27:13 阅读：340 评论：0 收藏：0 [点我收藏+]

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---恢复内容开始---

1. exp/imp

1)用户备份模式(逻辑备份)

exp user/pwd@SID owner:user rows=y compress=n buffer=65536 feedback=100000 volsize=0 file=user.dmp log=user.log ;

exp crm_base/crm_base owner=user file=crm_base.dmp log=crm_base.log

nohup imp \‘system/system123 as sysdba\‘ file=crm_channel.dmp fromuser=channel_poc touser=crm_channel log=crm_channel.log &

用户模式导出导入之前，可以先按原有数据库建立表空间和用户，直接导入就不会有表空间的问题了

SELECT DBMS_METADATA.GET_DDL(‘TABLESPACE‘, TS.tablespace_name)

FROM DBA_TABLESPACES TS;

2. expdp/impdp

1)用户导入导出模式

nohup expdp \‘system/system123@SID as sysdba\‘ directory=dir_name dumpfile=user.dmp schemas=user logfile=user.log &

nohup impdp \‘system/system123@SID as sysdba\‘ directory=DIR_SHUAIJG dumpfile=user.dmp remap_schema=fromuser:touser logfile=user.log &

--Remap_tablespace:from tbs:to tbs

2）全库导出导入模式

expdp system/system@oradb directory=expdp_dir dumpfile=expdp.dmp full=y logfile=user.log;

impdp system/system@oradb directory=expdp_dir dumpfile=expdp.dmp full=y logfile=user.log;

3）表导出模式

expdp system/system@oradb directory=expdp_dir dumpfile=expdp.dmp tables=scott.emp, scott.dept logfile=user.log

impdp system/system@oradb directory=expdp_dir dumpfile=expdp.dmp tables=scott.emp, scott.dept logfile=user.log

注：使用query条件的语句时最好采用parfile方式可以按条件导出数据

注：追加数据

impdp system/system@oradb directory=expdp_dir dumpfile=expdp.dmp schemas=scott table_exists_action=append

4）表空间导出模式

expdp system/system@oradb directory=expdp_dir dumpfile=expdp.dmp tablespaces=tbs1,tbs2.dmp tablespaces=tbs1,tbs2

impdp system/system@oradb directory=expdp_dir dumpfile=expdp.dmp tablespaces=tbs1,tbs2

5）查询创建db目录

select * from dba_directories;

create or replace directory dir_name as ‘dir_path’;

grant read,write on directory dir_name to public;

3.常见问题

--字符集

select userenv (‘language‘) from dual; 字符集问题，修改导入数据库字符集再改过来

import done in US7ASCII character set and AL16UTF16 NCHAR character set

import server uses AL32UTF8 character set (possible charset conversion )

export client uses ZHS16GBK character set (possible charset conversion )

--导入导出的schema是啥

select * from CRM_SO.SYS_EXPORT_SCHEMA_04

--存储过程执行不起来

--表空间不一致，通过转移表空间实现

--缺表，通过sql查询用户下有哪些表，更家里对比

=============================================================================

crm_base

expdp crm_base/crm_base directory=DIR_SHUAIJG dumpfile=crm_base.dmp schemas=crm_base logfile=crm_base.log;

-- Create the user

create user CRM_BASE

identified by crm_base

default tablespace DATA_BASE

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_BASE;

grant dba to CRM_BASE;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_BASE;

nohup imp \‘system/system123 as sysdba\‘ file=base_poc.dmp fromuser=base_poc touser=crm_base log=crm_base_imp.log &

crm_so

看有没有这个用户9841000691 和其他缺失的表，如果有上传

停服务，drop用户，新建用户

导入

nohup expdp crm_so/crm_so directory=DIR_SHUAIJG dumpfile=crm_so.dmp schemas=crm_so logfile=crm_so_exp.log &

-- Create the user

create user CRM_SO

identified by crm_so

default tablespace DATA_SO

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_SO;

grant dba to CRM_SO;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_SO;

nohup imp \‘system/system123 as sysdba\‘ file=so_poc.dmp fromuser=so_poc touser=crm_so log=crm_so_imp.log &

party

nohup expdp crm_party/crm_party directory=DIR_SHUAIJG dumpfile=crm_party.dmp schemas=crm_party logfile=crm_party_exp.log &

-- Create the user

create user CRM_PARTY

identified by crm_party

default tablespace DATA_PARTY

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_PARTY;

grant dba to CRM_PARTY;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_PARTY;

nohup imp \‘system/system123 as sysdba\‘ file=party_poc.dmp fromuser=party_poc touser=crm_party log=crm_party_imp.log &

product

nohup expdp crm_product/crm_product directory=DIR_SHUAIJG dumpfile=crm_product.dmp schemas=crm_product logfile=crm_product_exp.log &

-- Create the user

create user CRM_PRODUCT

identified by crm_product

default tablespace DATA_PRODUCT

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_PRODUCT;

grant dba to CRM_PRODUCT;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_PRODUCT;

nohup imp \‘system/system123 as sysdba\‘ file=product.dmp fromuser=product touser=crm_product log=crm_product_imp.log &

comframe--工作流

nohup expdp \‘system/system123 as sysdba\‘ directory=DIR_SHUAIJG dumpfile=crm_comframe.dmp schemas=crm_comframe logfile=crm_comframe_exp.log &

-- Create the user

create user CRM_COMFRAME

identified by crm_comframe

default tablespace DATA_COMFRAME

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_COMFRAME;

grant dba to CRM_COMFRAME;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_COMFRAME;

nohup imp \‘system/system123 as sysdba\‘ file=comframe_poc.dmp fromuser=comframe_poc touser=crm_comframe log=crm_comframe_imp.log &

selfcare

nohup expdp crm_selfcare/crm_selfcare directory=DIR_SHUAIJG dumpfile=crm_selfcare.dmp schemas=crm_selfcare logfile=crm_selfcare_exp.log &

-- Create the user

create user CRM_SELFCARE

identified by

crm_selfcare

default tablespace DATA_SELFCARE

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_SELFCARE;

grant dba to CRM_SELFCARE;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_SELFCARE;

nohup imp \‘system/system123 as sysdba\‘ file=selfcaredev_poc.dmp fromuser=selfcaredev_poc touser=crm_selfcare log=crm_selfcare_imp.log &

crm_channel

expdp crm_channel/crm_channel directory=DIR_SHUAIJG dumpfile=crm_channel.dmp schemas=crm_channel logfile=crm_channel.log;

-- Create the user

create user CRM_CHANNEL

identified by crm_channel

default tablespace DATA_CHANNEL

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_CHANNEL;

grant dba to CRM_CHANNEL;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_CHANNEL;

impdp crm_channel/crm_channel directory=DIR_SHUAIJG dumpfile=crm_channel.dmp remap_schema=crm_channel:crm_channel logfile=crm_channel.log;

crm_sec

expdp crm_sec/crm_sec directory=DIR_SHUAIJG dumpfile=crm_sec.dmp schemas=crm_sec logfile=crm_sec_exp.log;

-- Create the user

create user CRM_SEC

identified by crm_sec

default tablespace DATA_SEC

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_SEC;

grant dba to CRM_SEC;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_SEC;

nohup imp \‘system/system123 as sysdba\‘ file=sec_poc.dmp fromuser=sec_poc touser=crm_sec log=crm_sec_imp.log &

crm_cs

nohup expdp \‘system/system123 as sysdba\‘ directory=DIR_SHUAIJG dumpfile=crm_cs.dmp schemas=crm_cs logfile=crm_cs_exp.log &

-- Create the user

create user CRM_CS

identified by crm_cs

default tablespace DATA_CS

temporary tablespace TEMP

profile DEFAULT;

-- Grant/Revoke role privileges

grant connect to CRM_CS;

grant dba to CRM_CS;

-- Grant/Revoke system privileges

grant unlimited tablespace to CRM_CS;

nohup imp \‘system/system123 as sysdba\‘ file=cs_poc.dmp fromuser=cs_poc touser=crm_cs log=crm_cs_imp.log &

---恢复内容结束---

数据库备份

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原文地址：http://www.cnblogs.com/benmm/p/4190270.html

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