Why Your SQL JOIN Returns Duplicates
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In this video, you'll learn why SQL joins can mean duplicate rows in your results, and several ways to fix it.
⏱ TIMESTAMPS:
00:00 - An example
01:36 - Why it happens
02:00 - Fix option 1
02:49 - Fix option 2
03:23 - Fix option 3
03:53 - Another example
06:15 - Many-to-many relationships
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