CREATE TABLE endowment (endowment_id NUMBER, school_id NUMBER, donator_name CLOB, amount NUMBER)
CREATE TABLE budget (school_id NUMBER, year NUMBER, budgeted NUMBER, total_budget_percent_budgeted NUMBER, invested NUMBER, total_budget_percent_invested NUMBER, budget_invested_percent CLOB)
CREATE TABLE school (school_id CLOB, school_name CLOB, location CLOB, mascot CLOB, enrollment NUMBER, ihsaa_class CLOB, ihsaa_football_class CLOB, county CLOB)

Show the average, maximum, minimum enrollment of all schools.
SELECT AVG(enrollment), MAX(enrollment), MIN(enrollment) FROM school
SELECT AVG("enrollment"), MAX("enrollment"), MIN("enrollment") FROM "school"