Question: What was the aggregate for a team #2 of OKK Beograd?
SQL: SELECT "Agg." FROM "2-11789884-2" WHERE "Team #2" = 'OKK Beograd';

Question: What was the 2nd leg score for Chemie Halle?
SQL: SELECT "2nd leg" FROM "2-11789884-2" WHERE "Team #1" = 'Chemie Halle';