human
Schema:
county_public_safety (County_ID, Name, Population, Police_officers, Residents_per_officer, Case_burden, Crime_rate, Police_force, Location)
city (City_ID, County_ID, Name, White, Black, Amerindian, Asian, Multiracial, Hispanic)
Please answer with SQL.
assistant
Sure, I understand.
human
What is the location shared by most counties?
assistant
SELECT LOCATION FROM county_public_safety GROUP BY LOCATION ORDER BY COUNT(*) DESC LIMIT 1
human
What are the names of cities in ascending alphabetical order?
assistant
SELECT Name FROM city ORDER BY Name ASC
human
List the names of counties in descending order of population.
assistant
SELECT Name FROM county_public_safety ORDER BY Population DESC
human
How many counties are there?
assistant
SELECT count(*) FROM county_public_safety
human
List the names of counties that do not have any cities.
assistant
SELECT Name FROM county_public_safety WHERE County_ID NOT IN (SELECT County_ID FROM city)
human
What are the names of cities, as well as the names of the counties they correspond to?
assistant
SELECT T1.Name , T2.Name FROM city AS T1 JOIN county_public_safety AS T2 ON T1.County_ID = T2.County_ID ;