CREATE TABLE table_122 ("Club" TEXT, "Position in 2012" TEXT, "First season" TEXT, "Number of seasons" FLOAT, "First season of current spell" FLOAT, "Titles" FLOAT, "Last title" TEXT)

What was the first season of the club that in 2012 was 2nd in Superettan?
SELECT "First season" FROM table_122 WHERE "Position in 2012" = '2nd in Superettan'
SELECT "First season" FROM "table_122" WHERE "Position in 2012" = '2nd in Superettan'