oracle重启及impdb导入

oracle重启

停止Oracle服务

sqlplus / as sysdba
shutdown immediate;

停止Oracle监听器

sqlplus / as sysdba
lsnrctl stop;

从Oracle安装用户开启

sqlplus / as sysdba
startup
exit

启动监听器

$ORACLE_HOME/bin/lsnrctl start

impdb导入

创建逻辑目录

sqlplus / as sysdba
create directory dmp_dir as '/root/oracle';
grant read,write on directory dmp_dir to public;
show user;
host

删除目录语句：SQL> DROP DIRECTORY dmp_dir;dmp_dir为虚拟目录，实际不可见

将dmp文件导入/root/oracle文件夹

命令导入

impdp user2/pass2@IP:1521/ehrpdb table_exists_action=replace directory=dmp_dir dumpfile=TestDemo.dmp REMAP_SCHEMA=user1:user2 remap_tablespace=ehrpdb(之前库):ehrpdb(目前库) EXCLUDE=USER

table_exists_action：覆盖或追加数据；REMAP_SCHEMA 用户转换；remap_tablespace：库转换