webshere 中配�|�oracle 数据�?视频

Wed, 03 Feb 2010 06:48:00 GMT

摘要: 阅读全文

�?壞小�?/a> 2010-02-03 14:48 发表评论

Mon, 01 Feb 2010 09:47:00 GMT

查看当前用户的缺省表�I�间
SQL>select username,default_tablespace from user_users;

查看当前用户的角�?br /> SQL>select * from user_role_privs;

查看当前用户的系�l�权限和表��权限
SQL>select * from user_sys_privs;
SQL>select * from user_tab_privs;

查看用户下所有的�?br /> SQL>select * from user_tables;

昄��用户信息(所属表�I�间)
select default_tablespace,temporary_tablespace
from dba_users where username='GAME';

1、用�?br />
查看当前用户的缺省表�I�间
SQL>select username,default_tablespace from user_users;

查看当前用户的角�?br /> SQL>select * from user_role_privs;

查看当前用户的系�l�权限和表��权限
SQL>select * from user_sys_privs;
SQL>select * from user_tab_privs;

昄��当前会话所��h��的权�?br /> SQL>select * from session_privs;

昄��指定用户所��h��的系�l�权�?br /> SQL>select * from dba_sys_privs where grantee='GAME';

昄��Ҏ��用户
select * from v$pwfile_users;

昄��用户信息(所属表�I�间)
select default_tablespace,temporary_tablespace
from dba_users where username='GAME';

昄��用户的PROFILE
select profile from dba_users where username='GAME';

2、表

查看用户下所有的�?br /> 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�?br /> SQL>select object_name,created from user_objects where object_name=upper('&table_name');

查看某表的大��?br /> SQL>select sum(bytes)/(1024*1024) as "size(M)" from user_segments
where segment_name=upper('&table_name');

查看攑֜�ORACLE的内存区里的�?br /> SQL>select table_name,cache from user_tables where instr(cache,'Y')>0;

3、烦�?br />
查看索引个数和类�?br /> SQL>select index_name,index_type,table_name from user_indexes order by table_name;

查看索引被烦引的字段
SQL>select * from user_ind_columns where index_name=upper('&index_name');

查看索引的大��?br /> 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��P��last_number是当前�?br /> SQL>select * from user_sequences;

5、视�?br />
查看视图的名�U?br /> SQL>select view_name from user_views;

查看创徏视图的select语句
SQL>set view_name,text_length from user_views;
SQL>set long 2000; 说明�Q�可以根据视囄��text_length��D��定set long 的大��?br /> 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�?br />
查看某表的约束条�?br /> 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�q�程

查看函数和过�E�的状�?br /> 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�E�的源代�?br /> SQL>select text from all_source where owner=user and name=upper('&plsql_name');
--------------------------------------------------oracle 查询表字�D?以及字段数据�c�d�� -----------------------------------------

�W�一�U?/p>

select cname from col where tname='EMP';

�W�二�U?/p>

select column_name from user_tab_columns where table_name='EMP';

介绍如果查询数据�?nbsp; 字段数据�c�d��

select data_type from user_tab_columns where table_name='EMP';

两个一��h��

select data_type,column_name from user_tab_columns where table_name='EMP';

--------------------------------------------查询字段注释---------------------------------------------

select * from user_col_comments ;//所有的注释
select * from user_col_comments where table_name='你的�?emp)' ;//指定表的注释

�?壞小�?/a> 2010-02-01 17:47 发表评论

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webshere 中配�|�oracle 数据�?视频