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Here is Oracle solution from my HackerrankPractice repository:
WHERE COUNTRYCODE = 'JPN';
Feel free to ask if you have any questions :)
That's my answer, but it keeps giving me "wrong answer"
I dont why.
Try to check if you selected "Oracle" here:
TRY THIS CODE
SELECT NAME FROM CITY WHERE COUNTRYCODE='JPN';
It actually works
if you are using Oracle you must add a semicolon at the end of the instruction