Table: alberta_neighborhoods
Columns: neighbourhood
population_2012
population_2009
change
dwellings
area_km_2
density_people_km_2

Question: How many Dwellings does Beverly Heights have that have a change percent larger than -5.2?
SQL: SELECT SUM("dwellings") FROM alberta_neighborhoods WHERE "neighbourhood" = 'beverly heights' AND "change" > -5.2

Question: What is the density of an area that is 1.38km and has a population more than 12924?
SQL: SELECT COUNT("density_people_km_2") FROM alberta_neighborhoods WHERE "area_km_2" > 1.38 AND "population_2012" > 12924