SQL Devs! Will this query return orders that have no refunds at all?
Feb 9, 2026•Channel
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Video Overview
Video Details
Published4 months ago
Duration0:36
Video IDYMZGfG9P2lM
Languageen
CategoryScience & Technology
PrivacyPublic
Made for KidsNo
Video TypeYouTube Short
Performance Metrics
Views2.6K
Likes63
Comments8
Engagement Rate2.78%
Likes per 100 views2.47
Comments per 1K views3.13
Video Tags
Description
Here’s a SQL challenge that shows up in real production code more often than people expect. We’re selecting all orders and optionally joining refund data, but only for refunds over $100. At a glance, the LEFT JOIN makes it feel safe. But the final result doesn’t behave the way you might assume. Will orders with no refunds be returned by this query?
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Speakers: Jasmyne Roberts