用户
查看用户下所有的表
SQL>select * from user_tables;
查看当前用户的缺省表空间
SQL>select usernamedefault_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;
显示特权用户
select * from v$pwfile_users;
显示用户信息(所属表空间)
select default_tablespacetemporary_tablespace
from dba_users where username=GAME;
显示用户的PROFILE
select profile from dba_users where username=GAME;
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_nameobject_id from user_objects
where instr(object_nameLOG)>;
查看某表的创建时间
SQL>select object_namecreated from user_objects where object_name=upper(&table_name);
查看某表的大小
SQL>select sum(bytes)/(*) 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_namecache from user_tables where instr(cacheY)>;
索引
查看索引个数和类别
SQL>select index_nameindex_typetable_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)/(*) as size(M) from user_segments
where segment_name=upper(&index_name);
序列号
查看序列号last_number是当前值
SQL>select * from user_sequences;
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_nametext_length from user_views;
SQL>set long ; 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);
同义词
查看同义词的名称
SQL>select * from user_synonyms;
约束条件
查看某表的约束条件
SQL>select constraint_name constraint_typesearch_condition r_constraint_name
from user_constraints where table_name = upper(&table_name);
SQL>select nstraint_namenstraint_typelumn_name
from user_constraints cuser_cons_columns cc
where cowner = upper(&table_owner) and ctable_name = upper(&table_name)
and cowner = ccowner and nstraint_name = nstraint_name
order by ccposition;
存储函数和过程
查看函数和过程的状态
SQL>select object_namestatus from user_objects where object_type=FUNCTION;
SQL>select object_namestatus 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);
