CREATE TABLE roller_coaster (Roller_Coaster_ID NUMBER, Name CLOB, Park CLOB, Country_ID NUMBER, Length FLOAT, Height FLOAT, Speed CLOB, Opened CLOB, Status CLOB)
CREATE TABLE country (Country_ID NUMBER, Name CLOB, Population NUMBER, Area NUMBER, Languages CLOB)

What are the lengths and heights of roller coasters. Show scatter chart.
SELECT Length, Height FROM roller_coaster
SELECT "Length", "Height" FROM "roller_coaster"