Rails set db table values to nil

I have huge db, and in one table i want to set somefield to nil, how can i do this? When i do like that:

@act = Article.all
 @act.each do |aaa|
   aaa.name = nil

But this loads system, how to do this in more faster and better way?


Just do it like this:

Article.update_all(:name => nil)

This will go directly to the database, without loading the objects.

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