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oracle用户常用数据字典的查询使用方法

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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;

查看用户下所有的表
sql>select * from user_tables;

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');

from :
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