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 average number of police officers of all counties?
assistant
SELECT AVG ( Police_officers ) FROM county_public_safety;
human
Which county has largest number of police officers? Show its county_ID.
assistant
SELECT county_ID FROM county_public_safety ORDER BY Police_officers DESC LIMIT 1;
human
Which cities are located in this county?
assistant
SELECT name FROM city WHERE county_ID = ( SELECT county_ID FROM county_public_safety ORDER BY Police_officers DESC LIMIT 1 ) ;