Table: indiana_conference_schools
Columns: school
location
mascot
enrollment
ihsaa_class
county
year_joined

Question: what is the enrollement for the year joined 1958 in clarksville?
SQL: SELECT SUM("enrollment") FROM indiana_conference_schools WHERE "year_joined" = 1958 AND "location" = 'clarksville'

Question: what is the #/county that is ihsaa class aaa, has enrollment higher than 611 and the dragons is the mascot?
SQL: SELECT "county" FROM indiana_conference_schools WHERE "ihsaa_class" = 'aaa' AND "enrollment" > 611 AND "mascot" = 'dragons'