Oracle创建表空间，用户，授权

select tablespace_name,sum(bytes)/1024/1024 from dba_data_files group by tablespace_name
select file_name,tablespace_name,bytes/1024/1024 from dba_data_files
select tablespace_name,sum(bytes)/1024/1024 from dba_free_space group by tablespace_name

--1、创建用户临时表空间
create temporary tablespace user_temp
tempfile 'D:oracle_baseoradataORCLDATAFILEuseruser_temp_001.dbf' size 1024m
extent management local;

--删除

DROP TABLESPACE temp001 INCLUDING CONTENTS AND DATAFILES;

--2、创建用户数据表空间
create tablespace user_data_default
logging datafile 'D:oracle_baseoradataORCLDATAFILEuseruser_data_default_001.dbf'
size 1024m reuse extent management local segment space management auto;

--删除

DROP TABLESPACE temp001 INCLUDING CONTENTS AND DATAFILES;

--3、创建用户
create user oa identified by 123456
default tablespace USER_DATA_DEFAULT
temporary tablespace user_temp;

--删除

drop user ×× cascade

--4、授权
grant connect,resource to oa;
grant dba to oa;

[若表空间不足了，给表空间添加数据文件]
--对表空间进行添加数据文件
alter tablespace USER_DATA_DEFAULT
add datafile 'D:oracle_baseoradataORCLDATAFILEuseruser_data_default_002.dbf'
size 1024m;