SELECT t3.characteristic_name FROM products AS t1 JOIN product_characteristics AS t2 ON t1.product_id  =  t2.product_id JOIN CHARACTERISTICS AS t3 ON t2.characteristic_id  =  t3.characteristic_id GROUP BY t3.characteristic_name HAVING count(*)  >= 2
Give the names of characteristics that are in two or more products?
SELECT t3.characteristic_name FROM products AS t1 JOIN product_characteristics AS t2 ON t1.product_id = t2.product_id JOIN CHARACTERISTICS AS t3 ON t2.characteristic_id = t3.characteristic_id GROUP BY t3.characteristic_name HAVING count ( * ) > = 2
select t3 . characteristic_name from products as t1 join product_characteristics as t2 on t1 . product_id = t2 . product_id join characteristics as t3 on t2 . characteristic_id = t3 . characteristic_id group by t3 . characteristic_name having count ( * ) > = value
Give the names of characteristics that are in two or more products ?