如何查询oracle数据库中的各种角色

时间:2022-03-15 17:17:38
1. 查询oracle中所有用户信息
select * from dba_users;
2. 只查询用户和密码
select username,password from dba_users;
3. 查询当前用户信息
select * from dba_ustats;
4. 查询用户可以访问的视图文本
select * from dba_varrays;
5. 查询数据库中所有视图的文本
select * from dba_views;
select distinct tablespace_name from SYS.DBA_FREE_SPACE where tablespace_name like '%RB%'; select * from dba_objects where object_name='JDE900_F0005'; select * from rbods.jde900_f0005;
select * from rbodm.dim_company;   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
  查看用户下所有的表
  select * from user_tables
  显示用户信息(所属表空间)
  select default_tablespace,temporary_tablespace from dba_users
  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
  select * from dba_sys_privs
  显示特权用户
  select * from v$pwfile_users
  查看名称包含log字符的表
  select object_name,object_id from user_objects where instr(object_name,'log')>0
  查看某表的创建时间
  select object_name,created from user_objects where object_name='ZW_YINGYEZ'
  查看某表的大小
  select sum(bytes)/(1024*1024) tablesize from user_segments
  where segment_name='ZW_YINGYEZ'
  查看放在ORACLE的内存区里的表
  select table_name,cache from user_tables where instr(cache,'Y')>0
  查看索引个数和类别
  select index_name,index_type,table_name from user_indexes order by table_name
  查看索引被索引的字段
  select * from user_ind_columns where table_name='CB_CHAOBIAOSJ201004'
  查看索引的大小
  select sum(bytes)/(1024*1024) as indexsize from user_segments
  where segment_name=upper('AS_MENUINFO')
  查看视图信息
  select * from user_views
  查看同义词的名称
  select * from user_synonyms
  查看函数和过程的状态
  select object_name,status from user_objects where object_type='FUNCTION'
  select object_name,status from user_objects where object_type='PROCEDURE'
  查看函数和过程的源代码
  select text from all_source where owner=user and name='SF_SPLIT_STRING'
  查看表字段
  select cname from col where tname='ZW_YINGYEZ'
  select column_name from user_tab_columns where table_name='ZW_YINGYEZ' 查看oracle版本命令:
select * from v$version
 
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