CREATE TABLE table_name_90 (floors NUMBER, built VARCHAR2, name VARCHAR2)

What is the lowest Floors, when Built is greater than 1970, and when Name is NV Building 3?
SELECT MIN(floors) FROM table_name_90 WHERE built > 1970 AND name = "nv building 3"
SELECT MIN("floors") FROM "table_name_90" WHERE "built" > 1970 AND "name" = "nv building 3"