偶然的你
怎么查看 oracle 所有用户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_privsselect * 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$pwfile_users查看名称包含log字符的表select object_name,object_id from user_objects where instr(object_name,'log')>0查看某表的创建时间select object_name,created from user_objects where object_name='ZW_YINGYEZ'查看某表的大小select sum(bytes)/(1024*1024) tablesize from user_segmentswhere segment_name='ZW_YINGYEZ'查看放在ORACLE的内存区里的表select table_name,cache from user_tables where instr(cache,'Y')>0查看索引个数和类别select index_name,index_type,table_name from user_indexes order by table_name查看索引被索引的字段select * from user_ind_columns where table_name='CB_CHAOBIAOSJ201004'查看索引的大小select sum(bytes)/(1024*1024) as indexsize from user_segmentswhere segment_name=upper('AS_MENUINFO')查看视图信息select * from user_views查看同义词的名称select * from user_synonyms查看函数和过程的状态select object_name,status from user_objects where object_type='FUNCTION'select object_name,status from user_objects where object_type='PROCEDURE'查看函数和过程的源代码select text from all_source where owner=user and name='SF_SPLIT_STRING'查看表字段select cname from col where tname='ZW_YINGYEZ'select column_name from user_tab_columns where table_name='ZW_YINGYEZ'查看oracle版本命令：select * from v$version