What is the smallest city area?
CREATE TABLE table_18425346_2 (city_area_km_2__ INTEGER)
SELECT MIN(city_area_km_2__) FROM table_18425346_2
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18425346_2 (city_area_km_2__ INTEGER) Question: What is the smallest city area? [/INST] SELECT MIN(city_area_km_2__) FROM table_18425346_2 </s>