SELECT promo_name, promo_cost, promo_begin_date FROM promotions WHERE promo_category = 'post' AND promo_begin_date < '01-01-00';
SELECT promo_name, promo_cost, promo_begin_date FROM promotions WHERE promo_category LIKE 'P%' AND promo_begin_date < '1-JANUARY-00';
SELECT promo_name, promo_cost, promo_begin_date FROM promotions WHERE promo_cost LIKE 'post%' AND promo_begin_date < '01-01-2000';
SELECT promo_name, promo_cost, promo_begin_date FROM promotions WHERE promo_category LIKE '%post%' AND promo_begin_date < '1-JAN-00';