create directory db_bak as 'D:\ ECIMS_DB'

--查看创建的目录
select * from dba_directories

--删除已创建的目录
drop directory DB_BAK

格式:
drop directory 目录名

expdp XXX/XXX@XXX schemas=XXX dumpfile=XXX_20181130.dump logfile=XXX_20181130.LOG DIRECTORY=DB_BAK

语法：
expdp 用户名/密码@实例名 schemas=用户名 dumpfile=导出dump文件名.dump logfile=导出日志文件名.LOG DIRECTORY=DB_BAK

drop user XXX cascade;

格式：
drop user 用户名 cascade;

select username, sid, serial# from v$session where username='XXX' --找到用户SESSION

格式：
select username, sid, serial# from v$session where username='用户名' --找到用户SESSION

注：若有多条会话，需批量删除

alter system kill session '249,57377' --杀掉用户SESSION 'sid,serial#'
alter system kill session '250,57376' --杀掉用户SESSION 'sid,serial#'
alter system kill session '251,57375' --杀掉用户SESSION 'sid,serial#'

格式：
alter system kill session 'sid,serial'

create user XXX identified by XXX default tablespace USERS
temporary tablespace TEMP
profile DEFAULT;

-- Grant/Revoke role privileges
grant connect to XXX;
grant dba to XXX;
grant resource to XXX;

-- Grant/Revoke system privileges
grant alter any sequence to XXX;
grant alter any table to XXX;
grant alter any trigger to XXX;
grant change notification to XXX;
grant create any procedure to XXX;
grant create any sequence to XXX;
grant create any table to XXX;
grant create any type to XXX;
grant create any view to XXX;
grant unlimited tablespace to XXX;

--------------------------------------------------------------
格式：
create user 用户名 identified by 密码 default tablespace USERS
temporary tablespace TEMP
profile DEFAULT;

-- Grant/Revoke role privileges
grant connect to 用户名;
grant dba to 用户名;
grant resource to 用户名;

-- Grant/Revoke system privileges
grant alter any sequence to 用户名;
grant alter any table to 用户名;
grant alter any trigger to 用户名;
grant change notification to 用户名;
grant create any procedure to 用户名;
grant create any sequence to 用户名;
grant create any table to 用户名;
grant create any type to 用户名;
grant create any view to 用户名;
grant unlimited tablespace to 用户名;

impdp XXX/XXX DIRECTORY=db_bak DUMPFILE=XXX.dump logfile=XXX.log REMAP_SCHEMA=XXX:XXX remap_tablespace=XXX:XXX

格式
impdp 用户名/密码 DIRECTORY=db_bak DUMPFILE=备份文件名.dump logfile=备份日志文件名.log REMAP_SCHEMA=导出用户名:导入用户名 remap_tablespace=导出表空间:导入表空间

--备份数据库
expdp YZJ_TEST/YZJ_TEST@ECIMS schemas=YZJ_TEST dumpfile=YZJ_TEST_20181130.dump logfile=YZJ_TEST_20181130.LOG DIRECTORY=DB_BAK
--删除帐号
drop user YZJ_TEST cascade;
--查看账号连接数量
select username, sid, serial# from v$session where username='YZJ_TEST' --找到用户SESSION
alter system kill session '249,57377' --杀掉用户SESSION 'sid,serial#'

/*第1步：创建临时表空间  */
create temporary tablespace DMIS_STD_TEMP
tempfile 'F:\app\Administrator\oradata\ECIMS\DMIS_STD_TEMP.dbf'
size 50m
autoextend on
next 50m maxsize 20480m
extent management local;

/*第2步：创建数据表空间  */
create tablespace DMIS_STD_DATA
logging
datafile 'F:\app\Administrator\oradata\ECIMS\DMIS_STD_DATA.dbf'
size 50m
autoextend on
next 50m maxsize 20480m
extent management local;

/*第3步：创建用户并指定表空间  */
create user DMIS_STD identified by DMIS_STD
default tablespace DMIS_STD_DATA
temporary tablespace DMIS_STD_TEMP;

3、导入语句按下面的方式
impdp system/eMarine123 DIRECTORY=db_bak DUMPFILE=ERIM_PROD.dump logfile=ERIM_PROD_imp.log REMAP_SCHEMA=ERIM_PROD:<新用户名> remap_tablespace=ERIM_PROD:<新表空间名>