/*顯示當前用戶*/

show user

在sql plus中可用，在pl sql中不可用

/*查看所有用戶名*/selectusername,user_id,createdfromall_users;

/*查看當前用戶的用戶詳情*/

selectusername,user_id,account_status,lock_date,expiry_date,default_tablespace,temporary_tablespace,created,initial_rsrc_consumer_group,external_namefromuser_users;

/*查看數據庫的版本*/

select product,version,status from product_component_version;

/*查看當前用戶的用戶權限，系統權限和表級權限*/

select username,granted_role,admin_option,default_role,os_granted from user_role_privs;

select username,privilege,admin_option from user_sys_privs;

select grantee,owner,table_name,grantor,priviege,granttable,hierarchy from user_tab_privs;

查看當前用戶的缺省表空間

SQL>select username,default_tablespace from user_users;

查看當前用戶的角色

SQL>select * from user_role_privs;

查看當前用戶的系統權限和表級權限

SQL>select * from user_sys_privs;

SQL>select * from user_tab_privs;

查看用戶下所有的表

SQL>select * from user_tables;

顯示用戶信息(所屬表空間)

select default_tablespace,temporary_tablespace

from dba_users where username='GAME';

1、用戶

查看當前用戶的缺省表空間

SQL>select username,default_tablespace from user_users;

查看當前用戶的角色

SQL>select * from user_role_privs;

查看當前用戶的系統權限和表級權限

SQL>select * from user_sys_privs;

SQL>select * from user_tab_privs;

顯示當前會話所具有的權限

SQL>select * from session_privs;

顯示指定用戶所具有的系統權限

SQL>select * from dba_sys_privs where grantee='GAME';

顯示特權用戶

select * from v$pwfile_users;

顯示用戶信息(所屬表空間)

select default_tablespace,temporary_tablespace

from dba_users where username='GAME';

顯示用戶的PROFILE

select profile from dba_users where username='GAME';

2、表

查看用戶下所有的表

SQL>select * from user_tables;

查看名稱包含log字符的表

SQL>select object_name,object_id from user_objects

where instr(object_name,'LOG')>0;

查看某表的創建時間

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的內存區里的表

SQL>select table_name,cache from user_tables where instr(cache,'Y')>0;

3、索引

查看索引個數和類別

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、序列號

查看序列號，last_number是當前值

SQL>select * from user_sequences;

5、視圖

查看視圖的名稱

SQL>select view_name from user_views;

查看創建視圖的select語句

SQL>set view_name,text_length from user_views;

SQL>set long 2000; 說明：可以根據視圖的text_length值設定set long 的大小

SQL>select text from user_views where view_name=upper('&view_name');

6、同義詞

查看同義詞的名稱

SQL>select * from user_synonyms;

7、約束條件

查看某表的約束條件

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、存儲函數和過程

查看函數和過程的狀態

SQL>select object_name,status from user_objects where object_type='FUNCTION';

SQL>select object_name,status from user_objects where object_type='PROCEDURE';

查看函數和過程的源代碼

SQL>select text from all_source where owner=user and name=upper('&plsql_name');

總結

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