oracle10G常用维护语句

1 创建表空间

CREATE TABLESPACE CPORTAL LOGGING DATAFILE '/dev/raw/raw1' SIZE 30000M REUSE EXTENT MANAGEMENT LOCAL

2 创建用户

CREATE USER CPORTAL PROFILE DEFAULT IDENTIFIED BY CPORTAL  DEFAULT
    TABLESPACE CPORTAL TEMPORARY  TABLESPACE TEMP ACCOUNT UNLOCK
;
GRANT CONNECT TO CPORTAL
;
GRANT RESOURCE TO CPORTAL
;
ALTER USER CPORTAL DEFAULT ROLE  ALL

3 参数修改

ALTER SYSTEM SET sga_target = 1000M SCOPE=SPFILE
;
ALTER SYSTEM SET pga_aggregate_target = 200M SCOPE=SPFILE
;
ALTER SYSTEM SET OPEN_CURSORS=500 SCOPE=SPFILE
;
ALTER SYSTEM SET processes=200 SCOPE=SPFILE
;
ALTER SYSTEM SET remote_login_passwordfile = NONE
SCOPE=SPFILE
;
create pfile from spfile
;
-- ==============================================================
-- Modify the  other oracle parameter!                         --
-- ==============================================================

ALTER DATABASE TEMPFILE '/opt/oracle/oradata/cportal/temp01.dbf' RESIZE  1024M
;
ALTER DATABASE DATAFILE '/opt/oracle/oradata/cportal/undotbs01.dbf' RESIZE 1024M
;
ALTER DATABASE DATAFILE '/opt/oracle/oradata/cportal/undotbs01.dbf' AUTOEXTEND ON MAXSIZE 10240M

4 查看表空间名称和大小

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;

5 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;

6、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;

 

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、查看控制文件

　　select name from v$controlfile;

　　

　9、查看日志文件

　　select member from v$logfile;
10 .结束用户会话

alter system kill session 'SID,SERIAL#';

select sid,serial#,username,program,machine,status from v$session;