常用数据库备份还原命令

1. 显示当前目录
pwd

2 远程复制
scp ics20140902_0200.DMP oracle@10.10.16.40:./hpdata

3 重启数据库
lsnrctl stop;--监听服务停止
shutdown immediate;
startup;

4 进入Oracle
sqlplus "/as sysdba"

5 删用户
SQL>drop user hlj cascade;

6 建用户
SQL>create user hlj identified by hlj default tablespace users;
SQL>grant resource to hlj;
SQL>grant connect to hlj;
SQL>grant dba to hlj;

7 建目录
SQL>create directory HLJDIR as '/home/oracle/hpdata';
SQL>Grant read,write on directory DUMPDIR to lh;

--读取目录： select * from dba_directories;

8 导入库
impdp hlj/hlj DIRECTORY=DUMPDIR DUMPFILE=ics20140912_1408.DMP remap_schema=ics:hlj FULL=Y IGNORE=Y  --新建数据库
impdp hlj2/hlj DIRECTORY=HLJDIR DUMPFILE=ics20140919_0820.DMP remap_schema=ics:hlj2 TABLE_EXISTS_ACTION=REPLACE --替换已存在数据库

9 导入表
imp ics/ics file=hpdm20140829_6.DMP tables=FNTACCFRZINFO

10 导出库

expdp hlj/hlj dumpfile=hlj_141124.dmp full=n logfile=full.log directory=DUMPDIR job_name=my_job