命令创建、删除表空间，创建、授权用户，导入数据
create tablespace zcxm6 datafile 'E:\app\tablespace\hn3.dbf' size 300m autoextend on 

next 10m maxsize unlimited;

create user name identified by orcl default tablespace zcxm6;
grant connect,resource,dba to name;

imp userid=name/password full=y file=F:\datasource\hncq_zcxm6_0315.dmp

DROP TABLESPACE tablespacename INCLUDING CONTENTS  AND DATAFILES CASCADE CONSTRAINTS;
drop user username cascade;