- 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 = 'EZXX';
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');
9、查看建表语句
- SELECT DBMS_METADATA.GET_DDL('TABLE', 'TABLE_NAME') FROM DUAL; # (表名TABLE_NAME一定要来大写)
查看 Oracle 当前用户下的信息(用户,表视图,索引,表空间,同义词等)
原文:http://blog.51cto.com/liuqun/2051386
来源: http://www.bubuko.com/infodetail-2431063.html