CREATE TABLE candidate (Candidate_ID NUMBER, People_ID NUMBER, Poll_Source CLOB, Date CLOB, Support_rate FLOAT, Consider_rate FLOAT, Oppose_rate FLOAT, Unsure_rate FLOAT)
CREATE TABLE people (People_ID NUMBER, Sex CLOB, Name CLOB, Date_of_Birth CLOB, Height FLOAT, Weight FLOAT)

Bar chart of total number of height from each sex, and list from high to low by the X-axis.
SELECT Sex, SUM(Height) FROM people GROUP BY Sex ORDER BY Sex DESC
SELECT "Sex", SUM("Height") FROM "people" GROUP BY "Sex" ORDER BY "Sex" DESC