create bigfile tablespace "表空间名称" DATAFILE
'/路径/jopens.dbf' SIZE <初始大小>M AUTOEXTEND ON NEXT <自动增加的大小>M
---删除表空间
drop tablespace <表空间名称> INCLUDING CONTENTS AND DATAFILES;
commit
--------创建用户
create user jopens
identified by jopens
default tablespace jopens
commit
----授权
grant connect to jopens
grant resource to jopens
grant create sequence to jopens