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oracle 查看 用户,用户权限,用户表空间,用户默认表空间1.查看用户和默认表空间的关系。select username,default_tablespace from dba_users;2.查看当前用户的表:select table_name from user_tables;3.查看所有用户的表名:select table_name from all_tables;4.查看所有表名(其中包括系统表)select table_name from all_tables;5.查看所有的表:select * from tab/dba_tables/dba_objects/cat;下面介绍Oracle查询用户表空间◆Oracle查询用户表空间:select * from user_all_tables◆Oracle查询所有函数和储存过程:select * from user_source◆Oracle查询所有用户:select * from all_users.select * from dba_users◆Oracle查看当前用户连接:select * from v$Session◆Oracle查看当前用户权限:select * from session_privs◆Oracle查看用户表空间使用情况:1.select a.file_id "FileNo",a.tablespace_name "Tablespace_name", a.bytes "Bytes",a.bytes-sum(nvl(b.bytes,0)) "Used", sum(nvl(b.bytes,0)) "Free", sum(nvl(b.bytes,0))/a.bytes*100 "%free"from dba_data_files a, dba_free_space b where a.file_id=b.file_id(+) group by a.tablespace_name ,a.file_id,a.bytes order by a.tablespace_name;1.查看所有用户:select * from dba_user;select * from all_users;select * from user_users;2.查看用户系统权限:select * from dba_sys_privs;select * from all_sys_privs;select * from user_sys_privs;3.查看用户对象权限:select * from dba_tab_privs;select * from all_tab_privs;select * from user_tab_privs;4.查看所有角色:select * from dba_roles;5.查看用户所拥有的角色:select * from dba_role_privs;select * from user_role_privs;6.查看角色所拥有的权限:select * from role_sys_privs;select * from role_tab_privs;7.查看所有系统权限select * from system_privilege_map;8.查看所有对象权限select * from table_privilege_map;以上是在Oracle中查看用户权限 ,在DB2中为:select * from syscat.dbauth或者get authorizations查看sidselect * from v$instance
获取表:select table_name from user_tables; // 当前用户的表select table_name from all_tables; // 所有用户的表select table_name from dba_tables; // 包括系统表select table_name from dba_tables where owner=' 用户名 'user_tables :table_name,tablespace_name,last_analyzed 等dba_tables :ower,table_name,tablespace_name,last_analyzed 等all_tables :ower,table_name,tablespace_name,last_analyzed 等all_objects :ower,object_name,subobject_name,object_id,created,last_ddl_time,timestamp,status 等获取表字段:select * from user_tab_columns where Table_Name=' 用户表 ';select * from all_tab_columns where Table_Name=' 用户表 ';select * from dba_tab_columns where Table_Name=' 用户表 ';user_tab_columns :table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id 等all_tab_columns :ower,table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id 等dba_tab_columns :ower,table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id 等获取表注释:select * from user_tab_commentsuser_tab_comments : table_name,table_type,comments-- 相应的还有 dba_tab_comments , all_tab_comments ,这两个比 user_tab_comments 多了 ower 列。获取字段注释:select * from user_col_commentsuser_col_comments : table_name,column_name,comments
oracle查看用户、权限和表空间等操作方法
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转载自blog.csdn.net/lvzhyt/article/details/7655599
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