oracle常用命令

#搜索用户
select default_tablespace,username from dba_users where default_tablespace like 'NEWYZ%';
#搜索连接的用户sessionid
select username,sid,serial# from v$session where username = 'NEWYZ';
#强行中断用户连接session
alter system kill session'495,2285';
select saddr,sid,serial#,paddr,username,status from v$session where username is not null and username = 'NEWHJ' and status = 'INACTIVE'

#删除表空间及文件
drop tablespace newyz including contents and datafiles;
#删除表空间用户
drop user newyz cascade;

 
#新建表空间newyz
create tablespace newyz datafile “D:\oracldata\newyz.dbf” size 32m autoextend on next 32m maxsize 2048m extent management local;
#新建表空间用户newyz密码123456789 并将表空间newyz授权给用户newyz
create user newyz identified by "123456789" default tablespace newyz temporary tablespace temp profile default quota unlimited on newyz;
#授权给用户newyz
grant create session, resource to newyz;
grant EXPORT FULL DATABASE to newyz;
grant connect to newyz
grant dba to newyz 
#变更表空间test为读（写）权限
alter tablespace test read only;
alter tablespace test read write; 
#修改密码
alter user sw identified by sw;