每次Oracle数据库升级之后，都需要对库中的对象进行重新编译一下。下面整理出了一个脚本，只需要执行一下就能批量编译这些失效的对象。需要注意的是：
[oracle@oracle ~]$ cat check_compile.sql
set heading off;
set feedback off;
set echo off;
Set lines 999;
Spool run_invalid.sql
select ‘alter ‘||decode(object_type, ‘VIEW’, ‘VIEW’,’TRIGGER’,’TRIGGER’,
‘PROCEDURE’, ‘PROCEDURE’, ‘FOUNCTION’,’FUNCTION’,
‘PACKAGE’,’PACKAGE’, ‘PACKAGE BODY’, ‘PACKAGE’, ‘MATERIALIZED VIEW’)
||’ ‘||owner||’.’||object_name||’ compile ‘||’;’
from dba_objects
where status like ‘INV%’;
spool off;
set heading on;
set feedback on;
set echo on;
@run_invalid.sql
：http://www.linuxidc.com/Linux/2017-11/148739.htm
