Query data which id is even using SQL MOD() function
Author: Al-mamun Sarkar
Date: 2020-03-27 19:50:59
Query all unique cities which id is even from the STATION table using SQL MOD() Function. This is the solution of HackerRank's Weather Observation Station 3 SQL problem.
Table name: STATION
Table Structure:
| Fileds | Type |
| ID | NUMBER |
| CITY | VARCHAR |
| STATE | VARCHAR |
| LAT_N | NUMBER |
| LONG_W | NUMBER |
SQL Query:
SELECT CITY FROM STATION
WHERE MOD(ID, 2) = 0
GROUP BY CITY;