oracle+复制账号权限不够通过SQL管理表空间、用户、授权

通过SQL管理表空间、用户、授权

 

Sql代码  

–创建表空间  

CREATE TABLESPACE CRMDB  

DATAFILE '/opt/oracle/app/oradata/testdb/crm.dbf' SIZE 500M  

AUTOEXTEND ON NEXT 100M;  

  

–创建用户  

create  user  CRM  identified   by   password  default   tablespace  CRMDB;  

  

–给用户赋权限  

grant  dba  to  CRM;  

  

—删除用户及数据  

drop user CRM cascade;  

 

–修改用户密码  

alter user sys identified by system;  

 

–查看表空间使用情况  

select a.tablespace_name,  

       a.bytes / 1024 / 1024 "Sum MB",  

       (a.bytes – b.bytes) / 1024 / 1024 "used MB",  

       b.bytes / 1024 / 1024 "free MB",  

       round(((a.bytes – b.bytes) / a.bytes) oracle账号* 100, 2) "percent_used"  

  from (select tablespace_name, sum(bytes) bytes  

          from dba_data_files  

         group by tablespace_name) a,  

       (select tablespace_name, sum(bytes) bytes, max(bytes) largest  

          from dba_free_space  

         group by tablespace_name) b  

 where a.tablespace_name = b.tablespace_name  

 order by ((a.bytes – b.bytes) / a.bytes) desc  

  

 –查看表空间文件地址  

select name from v$datafile;