CREATE TABLE manufacturers (code NUMBER, name CLOB, headquarter CLOB, founder CLOB, revenue NUMBER)
CREATE TABLE products (code NUMBER, name CLOB, price NUMBER, manufacturer NUMBER)

Select the names of manufacturer whose products have an average price higher than or equal to $150.
SELECT AVG(T1.price), T2.name FROM products AS T1 JOIN manufacturers AS T2 ON T1.manufacturer = T2.code GROUP BY T2.name HAVING AVG(T1.price) >= 150
SELECT AVG("T1"."price"), "T2"."name" FROM "products" "T1" JOIN "manufacturers" "T2" ON "T1"."manufacturer" = "T2"."code" GROUP BY "T2"."name" HAVING AVG("T1"."price") >= 150