We've turned the previous query into a CTE. Your task is to complete the outer query based on the template. For London and all roads from London, show the following columns:
Path
– for N'London'
, this is simply 'London'; for other cities, it will be the path from London in the following format: London->CityName
Lat
,
Lon
,
TotalDistance
– here, distance from London to that city,
CountPlaces
– here, 2.
You can use the following function, that we've prepared for you to calculate the distance between two cities:
dbo.LatLonDistance(lat1, lon1, lat2, lon2)
Don't show the path from London to London (London->London
).