Learn SQL - SQL Interview Question - Second Highest Salary

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0:00 - Drawing explanation
2:40 - Coding solution

leetcode 176
Song: Bamboo by Oak Studios
Creative Commons - Attribution ND 4.0
#mysql #neetcode #sqlinterview
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Hello Neetcode, are you going to solve SQL problems agains? Thank you

khoanguyen
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Why did we use IFNULL to output NULL.? I mean IFNULL takes in NULL and gives some other output. Whats the point of giving NULL as an input to IFNULL and then taking NULL as the output?

vishalrohila
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@Neetcode can you pls provide more leetcode SQL problems. Thanks

xkkognf