Question: What date was the opponent VfL Sindelfingen?
SQL: SELECT "Date" FROM "2-18591990-4" WHERE "Opponent" = 'VfL Sindelfingen';

Question: What date was the attendance 1,804?
SQL: SELECT "Date" FROM "2-18591990-4" WHERE "Attendance" = '1,804';

Question: Who was the opponent with an attendance of 628?
SQL: SELECT "Opponent" FROM "2-18591990-4" WHERE "Attendance" = '628';