oracle创建表空间

drop tablespace qb including contents and datafiles;DROP TABLESPACE TJLGL INCLUDING CONTENTS AND DATAFILES;drop user qb cascadecreate tablespace qb loggingdatafile 'E:\app\landa6\oradata\qb.DBF' --(表空间路径) size 32m   autoextend on    next 32m     extent management local;        create user qb identified by qb default tablespace qb      grant dba to qb;--(分配权限给用户)    SELECT 'DELETE FROM '|| table_name || ';' FROM USER_TABLES ORDER BY TABLE_NAME;