oracle 常用管理命令

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--user
-- 查看当前用户的缺省表空间 
select username,default_tablespace from user_users;
-- 查看当前用户的角色 
select * from user_role_privs;
-- 查看当前用户的系统权限和表级权限 
select * from user_sys_privs;
select * from user_tab_privs;
-- 显示当前会话所具有的权限 
select * from session_privs;
-- 显示指定用户所具有的系统权限  需要权限
select * from dba_sys_privs where grantee='DM'


-- table
-- 查看用户下所有的表 
select * from user_tables where instr(lower(table_name),'user') >0 -- like '%user%'
select * from all_tables where lower(table_name) like 'user%'
-- 查看名称包含log字符的表  
select object_name,object_id from user_objects
where instr(object_name,'LOG') >0;
-- 查看某表的创建时间
select object_name,created from user_objects
where object_name = upper('&table_name');
-- 查看某表的大小
select sum(bytes)/(1024*1024) as "size(M)"
from user_segments
where segment_name = upper('&table_name')
-- 查看放在ORACLE的内存区里的表  
select table_name,cache from user_tables
where instr(cache,'Y') > 0;


--index
-- 查看索引个数和类别  
--select count(*) from (
select index_name,index_type,table_name
from user_indexes order by table_name--);
-- 查看索引被索引的字段 
select * from user_ind_columns 
where index_name = upper('&index_name');


-- sequence
--查看序列号
select * from user_sequences
create sequence t_ff
delete from user_sequences t where t.sequence_name in ('T_FF') -- need privilage of delete sequence


-- view
-- 查看视图的名称 
select * from user_views
-- 查看创建视图的select语句  
select text from user_views where view_name = upper('&view_name');


-- synonym
-- 查看同义词的名称  
select * from user_synonyms;
select * from all_synonyms;


-- function & procedure
-- 查看方法和过程
select object_name,status from user_objects where lower(object_type)='function';
select object_name,status from user_objects where lower(object_type)='procedure';
-- 查看源码
select text from all_source where owner = user and name=upper('&plsql_name')