EXISTS can be applied to automatically null collections - PL/SQL Collections
        
	  
	
    Q.  Only EXISTS can be applied to automatically null collections. If you apply another method to such collections, PL/SQL raises COLLECTION_IS_NULL.- Published on 09 Jul 15a. Yes
b. No
ANSWER: Yes
 
A built in function or procedure which is operated on collections and usually called using the dot notation is known as a collection method.