-- Database schema
| museum : Museum_ID [ INT ] primary_key , Name [ TEXT ] , Num_of_Staff [ INT ] , Open_Year [ TEXT ] | visitor : ID [ INT ] primary_key , Name [ TEXT ] , Level_of_membership [ INT ] , Age [ INT ] | visit : Museum_ID [ INT ] primary_key visit.Museum_ID = museum.Museum_ID , visitor_ID [ TEXT ] visit.visitor_ID = visitor.ID , Num_of_Ticket [ INT ] , Total_spent [ INT ] |
-- -- find the names of museums which have more staff than the minimum staff number of all museums opened after 2010.

SELECT name FROM museum WHERE num_of_staff  >  (SELECT min(num_of_staff) FROM museum WHERE open_year  >  2010);