CREATE TABLE stadium (ID NUMBER, name CLOB, Capacity NUMBER, City CLOB, Country CLOB, Opening_year NUMBER)
CREATE TABLE record (ID NUMBER, Result CLOB, Swimmer_ID NUMBER, Event_ID NUMBER)
CREATE TABLE event (ID NUMBER, Name CLOB, Stadium_ID NUMBER, Year CLOB)
CREATE TABLE swimmer (ID NUMBER, name CLOB, Nationality CLOB, meter_100 FLOAT, meter_200 CLOB, meter_300 CLOB, meter_400 CLOB, meter_500 CLOB, meter_600 CLOB, meter_700 CLOB, Time CLOB)

Give me the comparison about the average of meter_100 over the Nationality , and group by attribute Nationality by a bar chart, and display by the y-axis in ascending.
SELECT Nationality, AVG(meter_100) FROM swimmer GROUP BY Nationality ORDER BY AVG(meter_100)
SELECT "Nationality", AVG("meter_100") FROM "swimmer" GROUP BY "Nationality" ORDER BY AVG("meter_100")