Hello coders, today we are going to solve Weather Observation Station 18 HackerRank Solution in SQL.
Problem
Consider P1(a, b) and P2(c, d) to be two points on a 2D plane.
- a happens to equal the minimum value in Northern Latitude (LAT_N in STATION).
- b happens to equal the minimum value in Western Longitude (LONG_W in STATION).
- c happens to equal the maximum value in Northern Latitude (LAT_N in STATION).
- d happens to equal the maximum value in Western Longitude (LONG_W in STATION).
Query the Manhattan Distance between points P1 and P2 and round it to a scale of decimal places.
Input Format
The STATION table is described as follows:
| Field | Type |
|---|---|
| ID | NUMBER |
| CITY | VARCHAR2(21) |
| STATE | VARCHAR2(2) |
| LAT_N | NUMBER |
| Long_W | NUMBER |
where LAT_N is the northern latitude and LONG_W is the western longitude.
Solution – Weather Observation Station 18 in SQL
MySQL
select Round(ABS(MIN(LAT_N) - MAX(LAT_N)) + ABS(MIN(LONG_W) - MAX(LONG_W)),4) FROM STATION;
Disclaimer: The above Problem (Weather Observation Station 18) is generated by Hacker Rank but the Solution is Provided by CodingBroz. This tutorial is only for Educational and Learning Purpose.
select round(abs(max(lat_n) – min(lat_n) + abs((max(long_w)) – min(long_w))),4) from station;
it should like this.
modified query:
select cast(round(abs(min(lat_n) – max(lat_n)) + abs(min(long_w) – max(long_w)),4) as decimal(10, 4)) from station;
select round(((max(LAT_N)+max(LONG_W)-min(LAT_N)-min(LONG_W)),4) from STATION
whats wrong here