Products that were never sold: #sql Interview Question Day 12/40
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YouTubeArt of Data
Products that were never sold: #sql Interview Question Day 12/40
In this short SQL tutorial, we walk through a classic interview-style problem: How do you find products that have never been sold? To answer this, we look at two tables — a product list and a sales table — and think about how they relate. Not every product will appear in the sales table, and that’s exactly the clue we need. Using a simple ...
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