Question: How much Peak Position has Sales Total larger than 1540088?
SQL: SELECT COUNT("Peak Position") FROM "2-17986709-4" WHERE "Sales Total" > 1540088.0;

Question: Which Sales Total has a Chart of Oricon Monthly Albums Chart?
SQL: SELECT "Sales Total" FROM "2-17986709-4" WHERE "Chart" = 'Oricon Monthly Albums Chart';

Question: Which Chart has a Peak Position of 1?
SQL: SELECT "Chart" FROM "2-17986709-4" WHERE "Peak Position" = 1.0;