Script to count and recompile invalid objects

This is pretty simple, but I thought I would share it since it is helpful to me.  I have been preparing for a large migration which involves table, index, type, function, package, and procedure changes.  When I run a big migration like this I check for invalid objects before and after the migration and attempt to recompile any that are invalid.  By checking before and after the migration I know which objects the migration invalidated.

Here’s the script:

select status,count(*)
from dba_objects
where owner='YOURSCHEMA'
group by status
order by status;

select 'alter '||object_type||' '||owner||'.'||object_name||
       ' compile;'
from dba_objects
where owner='YOURSCHEMA' and
status='INVALID' and
object_type <> 'PACKAGE BODY'
union
select 'alter package '||owner||'.'||object_name||' compile body;'
from dba_objects
where owner='YOURSCHEMA' and
status='INVALID' and
object_type = 'PACKAGE BODY';

Replace “YOURSCHEMA” with the schema that your objects are in.

Output is something like this:

STATUS    COUNT(*)
------- ----------
INVALID          7
VALID        53581

'ALTER'||OBJECT_TYPE||''||OWNER||'.'||OBJECT_NAME||'COMPILE;'
--------------------------------------------------------------
alter FUNCTION YOURSCHEMA.YOURFUNCTION compile;
alter package YOURSCHEMA.YOURPACKAGE compile body;

The counts give me a general idea of how many objects are invalid and the alters gives me sql that I can paste into a script and run to attempt to compile the objects and make them valid.

Hope this is helpful to someone else.  It’s helpful to me.

– Bobby