SQL & PL/SQL

Hi all,

I have a script that updates on daily basis my database schema with all the core changes done on the database objects within that day.
At the end of the script, i need to recompile the invalid database objects in order to bring my schema on a stable phase.

I would like to put in the script the same command that the PL/SQL Developer Compile Invalid Objects tool is using.
Does anyone know the exact command that is executed upon pressing the execute button?

Many thanks and Regards,
Mina