Which two are true about PL/SQL objects?
A)They must be in an invalid state to be recompiled.
B)They can never be manually recompiled.
C)They can be manually recompiled.
D)They must be manually recompiled.
E)They can be automatically recompiled.
Answer: CE
Zhao:
A translation: they must be recompiled in an inactive state.
Translation B: they never manually recompile.
Back issues: exclusion must be and never.
Regardless of the view, like stored procedures, functions, packages, etc., if the code itself is not wrong, but the object reference has changed. They will fail. But it does not affect the call, because when you call ORACLE will automatically recompiled if the other objects change causes the compiler error. At this time calling after recompilation is wrong and in a failed state, so the call will go wrong. (At this point you should find out cause of the error and then manually compiled)