Question: What was the 2nd leg score having an aggregate score of 4-2?
SQL: SELECT "2nd leg" FROM "2-17968233-1" WHERE "Aggregate" = '4-2';

Question: What was the home team for the 2nd leg for the match having a 1st leg score of 2-1?
SQL: SELECT "Home (2nd leg)" FROM "2-17968233-1" WHERE "1st Leg" = '2-1';

Question: What was the home team for the 2nd leg of the match having an aggregate of 2-3?
SQL: SELECT "Home (2nd leg)" FROM "2-17968233-1" WHERE "Aggregate" = '2-3';