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  • oracle如何查看表空间

    1、用户
      查看当前用户的缺省表空间
      SQL>select username,default_tablespace from user_users;
      查看当前用户的角色
      SQL>select * from user_role_privs;
      查看当前用户的系统权限和表级权限
      SQL>select * from user_sys_privs;
      SQL>select * from user_tab_privs;
      显示当前会话所具有的权限
      SQL>select * from session_privs;
      显示指定用户所具有的系统权限
      SQL>select * from dba_sys_privs where grantee='GAME';
      2、表
      查看用户下所有的表
      SQL>select * from user_tables;
      查看名称包含log字符的表
      SQL>select object_name,object_id from user_objects
      where instr(object_name,'LOG')>0;
      查看某表的创建时间
      SQL>select object_name,created from user_objects where object_name=upper('&table_name');
      查看某表的大小
      SQL>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
      SQL>select table_name,cache from user_tables where instr(cache,'Y')>0;
      3、索引
      查看索引个数和类别
      SQL>select index_name,index_type,table_name from user_indexes order by table_name;
      查看索引被索引的字段
      SQL>select * from user_ind_columns where index_name=upper('&index_name');
      查看索引的大小
      SQL>select sum(bytes)/(1024*1024) as "size(M)" from user_segments
      where segment_name=upper('&index_name');
      4、序列号
      查看序列号,last_number是当前值
      SQL>select * from user_sequences;
      5、视图
      查看视图的名称
      SQL>select view_name from user_views;
      查看创建视图的select语句
      SQL>set view_name,text_length from user_views;
      SQL>set long 2000; 说明:可以根据视图的text_length值设定set long 的大小
      SQL>select text from user_views where view_name=upper('&view_name');
      6、同义词
      查看同义词的名称
      SQL>select * from user_synonyms;
      7、约束条件
      查看某表的约束条件
      SQL>select constraint_name, constraint_type,search_condition, r_constraint_name
      from user_constraints where table_name = upper('&table_name');
      SQL>select c.constraint_name,c.constraint_type,cc.column_name
      from user_constraints c,user_cons_columns cc
      where c.owner = upper('&table_owner') and c.table_name = upper('&table_name')
      and c.owner = cc.owner and c.constraint_name = cc.constraint_name
      order by cc.position;
      8、存储函数和过程
      查看函数和过程的状态
      SQL>select object_name,status from user_objects where object_type='FUNCTION';
      SQL>select object_name,status from user_objects where object_type='PROCEDURE';
      查看函数和过程的源代码
      SQL>select text from all_source where owner=user and name=upper('&plsql_name');

     http://blog.csdn.net/qq_37723153/article/details/70766939

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  • 原文地址:https://www.cnblogs.com/chuancheng/p/8458486.html
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