Database: museum_visit_total_2
Question: What is the name of the visitor who visited both a museum opened before 2009 and a museum opened after 2011?
SQL: select t1.name_visitor_visit from visitor_visit_museum as t1 where t1.open_year < 2009 intersect select t1.name_visitor_visit from visitor_visit_museum as t1 where t1.open_year > 2011