Oracle管理方面的3個近期彙總整理

1、語句修改oracle用戶密碼

 alter user edw1010 identified by edw1010;

其實這很簡單，但因爲不經常用，所以用到的時候會顯得有些手忙腳亂的。

2、查看已經刪除的代碼腳本

參考語句如下：

 --可用於查看閃回查詢的對象（PROCEDURE、PACKAGE、PACKAGE BODY、TYPE BODY、TRIGGER、FUNCTION、TYPE） --實際上就是在數據字典表上ORACLE的閃回查詢的利用 --以sys作爲DBA登錄 select * from dba_source as of timestamp to_timestamp('2011-01-23 06:56:00', 'YYYY-MM-DD HH24:MI:SS') where owner = 'EDW' and type = 'PROCEDURE'; select * from dba_source as of timestamp to_timestamp('2011-01-23 07:46:00', 'YYYY-MM-DD HH24:MI:SS') where owner = 'EDW' and type = 'FUNCTION';

表結構的閃回查看

 --下面的語句可以查看錶結構建表語句，但對閃回查詢不起作用 SELECT DBMS_METADATA.GET_DDL('TABLE', 'TEST', 'EDW') FROM DUAL as of timestamp to_timestamp('2011-01-23 08:13:30', 'YYYY-MM-DD HH24:MI:SS'); --但可以如下語句查看錶結構狀態 select * from dba_tab_columns as of timestamp to_timestamp('2011-01-23 08:27:00', 'YYYY-MM-DD HH24:MI:SS') where owner = 'EDW' and table_name='GBICC';

3、生成刪除用戶下對象語句的腳本

 --刪除某個用戶下的對象 set heading off; set feedback off; spool D:/drop_user_obj.sql; prompt --開始生成刪除當前用戶下如下對象的腳本（若本腳本列示的不全，可自行添加） prompt --Drop constraint select 'alter table ' || table_name || ' drop constraint ' || constraint_name || ' ;' from user_constraints where constraint_type = 'R'; prompt --Drop tables select 'drop table ' || table_name || ';' from user_tables; prompt --Drop view select 'drop view ' || view_name || ';' from user_views; prompt --Drop procedure select 'drop procedure ' || object_name || ';' from user_procedures where object_type = 'PROCEDURE'; prompt --Drop function select 'drop function ' || object_name || ';' from user_procedures where object_type = 'FUNCTION'; prompt --Drop sequence select 'drop sequence ' || sequence_name || ';' from user_sequences; spool off;