Moving the fields and data from one content type to another content type I have created a content type called "ContentA" and in that content type I have two fields, "Summary" and "Title". I have already created a new content type called "ContentB" and it is also having the same fields. What I need to do is move the data and fields everything from the first content type "ContentA" to second content type "ContentB" and I'm using Drupal 7. 
I tried the node convert module, it is allowing only each node at once, I am having approximately 500 nodes, I cannot use that module. So looking for any module/script for bulk transfer 

Is this possible with a module or maybe from SQL. I don't know what to do, I've been trying to do this from weeks and I'm stuck :( please help!
you can definitely accomplish this with the migrate module (https://www.drupal.org/project/migrate). Your source DB and your destination DB will be the same, but that is acceptable. You're essentially migrating ContentA nodes into ContentB nodes and since they both have the same fields the mapping should be very simple.