Select * FROM Dba_Tablespaces; //查看所有的表空间 Select * FROM DBA_DATA_FILES; //查看所有的表空间以及对应的地址 /*分为四步 */ /*第1步:创建临时表空间 */ create temporary tablespace user_temp tempfile 'D:APPADMINISTRATORORADATAORCLuser_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 user_data logging datafile 'D:APPADMINISTRATORORADATAORCLuser_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 username identified by password default tablespace user_data temporary tablespace user_temp; /*第4步:给用户授予权限 */ grant connect,resource,dba to username;