Oracle的功能性sql

--创建表空间

CREATE TABLESPACE FSNEW 
DATAFILE '/path/to/storeDataDir' SIZE 30G
EXTENT MANAGEMENT LOCAL 
UNIFORM SIZE 1M;

--查看当前用户所有表

select * from user_tables;

--查看所有用户及其表空间

select   username,default_tablespace from   dba_users ;
select * from all_users;

--删除用户及其所有配置

drop user username CASCADE;   

--修改用户的表空间

alter user username default tablespace tablespacename;

--删除表空间

drop tablespace tablespacename including contents and datafiles cascade constraint;

--修改表空间状态

alter tablespace tablespacename online;
select * from dba_tablespaces;
select name from v$datafile;
alter tablespace tablespacename rename datafile '/old/path/to/dataStoreDir' to '/new/path/to/dataStoreDir';
alter database rename file '/new/path/to/dataStoreDir/SYSTEM01.DBF' to '/old/path/to/dataStoreDir/SYSTEM01.DBF';

--创建用户并赋权

CREATE USER case  IDENTIFIED BY case DEFAULT TABLESPACE XXX;

GRANT RESOURCE,DBA,CONNECT TO case ;
 
grant alter any table to case with admin option;
grant create session to case with admin option;
grant delete any table to case with admin option;
grant select any table to case with admin option;
grant unlimited tablespace to case with admin option;
grant update any table to case with admin option;

--同义词

select 'create or replace  synonym ' || synonym_name || ' for dbname.' || table_name || ';'
  from user_synonyms;
  
--create or replace  synonym tablename for dbname.tablename;

 --查看版本号

select banner||':'||(select utl_inaddr.get_host_name() from dual) version from v$version where rownum=1

--解决锁表

SELECT l.session_id sid, 
   s.serial#
FROM v$locked_object l, all_objects o, v$session s 
WHERE l.object_id = o.object_id 
   AND l.session_id = s.sid 
ORDER BY sid, s.serial# ;
alter system kill session '128,3778'; 
alter system kill session '153,2841';

--命令导出数据库

--使用exp

exp username/password@ip/oanet file=D:exportgd_base.dmp log=/path/to/exportlog/xxx.log full=y

--使用expdp导出数据

1. 准备工作

连接目标数据库，查看服务器端字符集

SQL> select userenv('language') from dual;

USERENV('LANGUAGE')

----------------------------------------------------

SIMPLIFIED CHINESE_CHINA.ZHS16GBK

SQL>

2. 退出当前会话，设置客户端字符集使之与服务端字符集一致

SQL> exit

从 Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options 断开

C:>SET NLS_LANG= SIMPLIFIED CHINESE_CHINA.ZHS16GBK

3. 创建逻辑目录，并赋予Oracle对其的读写权限

使用EXPDP工具时，其转存储文件只能被存放在directory对象对应的OS目录中，而不能直接指定转存储文件所在的OS目录。在此，先在操作系统创建目录C:dump

以system等管理员身份登录sqlplus，授予用户test对目录对象dmp_dir的读写权限。

create directory dmp_dir as 'C:dump'

grant read, write on directory dmp_dir to hlsbi;

　　创建路径需要sys权限，需要有create any directory权限才可以创建路径。

　　选项：DIRECTORY=directory_object

Directory_object用于指定目录对象名称。需要注意，目录对象是使用CREATE DIRECTORY语句建立的对象，而不是OS目录。

 

 --命令导入数据库