CREATE TABLE festival_detail (Num_of_Audience VARCHAR2, YEAR VARCHAR2)

Show the number of audience in year 2008 or 2010.
SELECT Num_of_Audience FROM festival_detail WHERE YEAR = 2008 OR YEAR = 2010
SELECT "Num_of_Audience" FROM "festival_detail" WHERE "YEAR" = 2008 OR "YEAR" = 2010