oracle创建表空间 授权

--创建表空间  临时表空间
create temporary tablespace xiaodai_temp tempfile '/main/app/oracle/oradata/devdb/xiaodai_temp.dbf' size 50m autoextend on next 50m maxsize 20480m extent management local;
 
create tablespace xiaodai_data logging datafile '/main/app/oracle/oradata/devdb/xiaodai.dbf' size 50m autoextend on next 50m maxsize 20480m extent management local;
 
--创建用户/授权
create user telecom identified by telecom default tablespace xiaodai_data temporary tablespace xiaodai_temp;
grant create session to telecom;
grant create table,create view,create trigger, create sequence,create procedure to telecom;
grant unlimited tablespace to telecom;
grant connect,resource,dba to telecom;     
 
--删除表空间
drop tablespace user_temp including contents;
drop tablespace user_temp including contents and datafiles;

需要先给oracle设置环境变量,然后去安装目录的bin目录,切换到oracle用户

执行 ./sqlplus / as sysdba 即可登录

export ORACLE_HOME=/main/app/oracle/product/11.2.0/db_1
export ORACLE_SID=xxxx

其他一些查询表空间等语句:

-1、查看表空间的名称及大小
SELECT t.tablespace_name, round(SUM(bytes / (1024 * 1024)), 0) ts_size
FROM dba_tablespaces t, dba_data_files d
WHERE t.tablespace_name = d.tablespace_name
GROUP BY t.tablespace_name;
--2、查看表空间物理文件的名称及大小
SELECT tablespace_name,
file_id,
file_name,
round(bytes / (1024 * 1024), 0) total_space
FROM dba_data_files
ORDER BY tablespace_name;
--3、查看回滚段名称及大小
SELECT segment_name,
tablespace_name,
r.status,
(initial_extent / 1024) initialextent,
(next_extent / 1024) nextextent,
max_extents,
v.curext curextent
FROM dba_rollback_segs r, v$rollstat v
WHERE r.segment_id = v.usn(+)
ORDER BY segment_name;
--4、查看控制文件
SELECT NAME FROM v$controlfile;
--5、查看日志文件
SELECT MEMBER FROM v$logfile;
--6、查看表空间的使用情况
SELECT SUM(bytes) / (1024 * 1024) AS free_space, tablespace_name
FROM dba_free_space
GROUP BY tablespace_name;
SELECT a.tablespace_name,
a.bytes total,
b.bytes used,
c.bytes free,
(b.bytes * 100) / a.bytes "% USED ",
(c.bytes * 100) / a.bytes "% FREE "
FROM sys.sm$ts_avail a, sys.sm$ts_used b, sys.sm$ts_free c
WHERE a.tablespace_name = b.tablespace_name
AND a.tablespace_name = c.tablespace_name;
--7、查看数据库库对象
SELECT owner, object_type, status, COUNT(*) count#
FROM all_objects
GROUP BY owner, object_type, status;
--8、查看数据库的版本　
SELECT version
FROM product_component_version
WHERE substr(product, 1, 6) = 'Oracle';
--9、查看数据库的创建日期和归档方式
SELECT created, log_mode, log_mode FROM v$database;