Table: allsvenskan_clubs
Columns: club
position_in_2012
first_season
number_of_seasons
first_season_of_current_spell
titles
last_title

Question: What was the first season of the club who last won a title in 2012?
SQL: SELECT "first_season" FROM allsvenskan_clubs WHERE "last_title" = '2012'

Question: What was the first season of the club that in 2012 was 2nd in Superettan?
SQL: SELECT "first_season" FROM allsvenskan_clubs WHERE "position_in_2012" = '2nd in Superettan'

Question: What was the first season for the club that in 2012 was 2nd in Superettan?
SQL: SELECT "first_season" FROM allsvenskan_clubs WHERE "position_in_2012" = '2nd in Superettan'