SELECT 1 = 1 OR 1 / 0;
SELECT true OR false AND false;
SELECT (true OR false) AND false;
SELECT customername, country FROM customers WHERE country = 'USA' OR country = 'France';
SELECT customername, country, creditLimit FROM customers WHERE (country = 'USA' OR country = 'France') AND creditlimit > 100000;
SELECT customername, country, creditLimit FROM customers WHERE country = 'USA' OR country = 'France' AND creditlimit > 100000;