项目中开发使用了VPD，数据库用户B的对象的创建依赖于数据用户A，由于用户A的对象进行DDL、迁移或dump等操作，造成了用户B的对象INVALID。应用系统的数据源使用了用户B，因此造成应用系统出错。

此时可进行如下处理：

1，找到失效的对象

select object_type,object_id,object_name
from user_objects 
where status='INVALID' order by object_type

编译的方法有多种：

1） DBMS_DDL

2.）DBMS_UTILITY
3.）UTL_RECOMP
4）UTLRP.SQL
5）Manually Recompile

最佳方案是手动编译这些对象，可以参考下面的SQL脚本：

Spool recompile.sql

Select ‘alter ‘object_type’ ’object_name’ compile;’
From user_objects
Where status <> ‘VALID’
And object_type IN (‘VIEW’,’SYNONYM’,
‘PROCEDURE’,’FUNCTION’,
‘PACKAGE’,’TRIGGER’);

Spool off
@recompile.sql


Note: VIEW,SYNONYM,PROCEDURE,PACKAGE,FUNCTION,TRIGGER


Spool pkg_body.sql

Select ‘alter package ’object_name’ compile body;’
From user_objects
where status <> ‘VALID’
And object_type = ‘PACKAGE BODY’;

Spool off
@pkg_body.sql


Spool undefined.sql

select ‘alter materizlized view ’object_name’ compile;’
From user_objects
where status <> ‘VALID’
And object_type =‘UNDEFINED’;

Spool off
@undefined.sql


Spool javaclass.sql

Select ‘alter java class ’object_name’ resolve;’
from user_objects
where status <> ‘VALID’
And object_type =‘JAVA CLASS’;

Spool off
@javaclass.sql


Spool typebody.sql

Select ‘alter type ‘object_name’ compile body;’
From user_objects
where status <> ‘VALID’
And object_type =‘TYPE BODY’;

Spool off
@typebody.sql


Spool public_synonym.sql

Select ‘alter public synonym ‘object_name’ compile;’
From user_objects
Where status <> ‘VALID’
And owner = ‘PUBLIC’
And object_type = ‘SYNONYM’;

Spool off
@public_synonym.sql

可以参考：http://dbataj.blogspot.com/2007/08/how-to-compile-invalid-objects.html

Metalink文章：【ID 125780.1】