<|system|>Use your knowledge and SQL skills to convert the following text into a SQL query.
Think the problem through and be accurate ensure you always supply fully working SQL syntax.

SQL Statments should be wrapped in <codestart type="sql"> and </codeend> tags.

Example output:
<codestart type="sql">SELECT * FROM table_name;</codeend>
<codestart type="sql">SELECT column_name FROM table_name WHERE column_name = 'value';</codeend><|end|><|user|>When the home attendance is 3.123, what's the highest away attendance?

SQL Table Create Statement:
CREATE TABLE table_1816947_2 (highest_attendance_away VARCHAR, average_attendance_home VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT highest_attendance_away FROM table_1816947_2 WHERE average_attendance_home = "3.123"</codeend><|end|>