Hi Experts,

I am a really newbee with this Apex and SOQLs. 

How would I do this?

I would like to compare so I can get filtered results:

Logic would look like this:

query1: SELECT Id, Parent_ObjectA__c FROM Child_ObjectA__c 
query2: SELECT Id, Parent_ObjectA__c FROM Child_ObjectB__c

I would like to grab the IDs of Child Records, from two different Child Objects, that looks up on the same Parent  Record.

How would I do this?

I appreciate any help you can give me.

Thanks !

FYI: I am really dumb with APEX so if you can have additional remarks, I would really appreciate it.