在使用数据泵进行模式级别导入导出时，导出成功后进行数据导入。出现报错：
可以看到存储过程对象F_NUM编译报错。
- 那么首先查看无效对象。
SYS@proe>col object_name for a30;
SYS@proe>select owner,object_name,object_type,status
from dba_objects
where status !='VALID'
and owner not in ('SYS','SYSTEM') 2 3 4 ;
- 对这个无效对象执行编译。
SYS@proe>alter procedure new_scott.F_NUM compile;
Warning: Procedure altered with compilation errors.编译无效对象方法：
view： alter view view_name compile;
function: alter function function_name compile;
procedure: alter procedure procedure_name compile;
- 发现编译是不成功的，使用show error进行判断
SYS@proe>show errors procedure new_scott.F_NUM;
Errors for PROCEDURE NEW_SCOTT.F_NUM:
LINE/COL ERROR
-------- ------------------------------------------------
0/0 PL/SQL: Compilation unit analysis terminated
2/11 PLS-00201: identifier 'EMPLOYEES.EMPLOYEE_ID' must be declared