Level 1

Red Light Green Light

Illustration of 3 squid games workers with punctuation as masks with text 'SQL SQUID GAME'

Scenario

Welcome, Data Scientist! It's me, the Front Man. I see you've accepted my... unique employment opportunity.

We've set up our operations on a private island – and before you ask, no, not THAT kind of private island.

You've joined just at the right time – the first game of Red Light, Green Light finished and we've generated some fresh data to analyze and fresh bodies to harvest.

Red Light Green Light Death

Your first challenge begins now:
The organizers want to identify vulnerable living players who might be easily manipulated for the next game. Find all players who are alive, in severe debt (debt > 400,000,000 won), and are either elderly (age > 65) OR have a vice of Gambling with no family connections.

Show us how you handle our data, and remember – in this game, there's no room for error.

Click here to view the schema.


Enter your solution

Hints

Hint 1

Hint 2