Leetcode SQL 50 - Beginner to Advanced - Part 4 #sql #leetcode

Hi everyone,
I Spent another 1.5 Hour solving Leetcode SQL 50 and Here's What I Found.

In this video, I solve SQL 50(free version ) problems 33-42, breaking down the logic and explaining every query in detail.

Whether you're preparing for interviews or brushing up your database knowledge, this is for you!

Some Key lessons that I found helpful:
1.Always breakdown the problems into smaller chunks to solve it faster.
2. Also learnt that you don't necessarily have to join multiple tables for an output. Both tables can be used without joining
3. Also learnt some quick facts about SQL e.g. how SQL combines nulls in a column if used in group by, convert function is another type of function which can be used to convert not only data types but length of column etc.
4. If you want to create a temporary table with constant values then 'Union' is the way to do that

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📌 Timestamps:
0040 - Problem 33
07:06 - Problem 34
17:30 - Problem 35
23:20 - Problem 36
32:00 - Problem 37
36:27 - Problem 38
39:06 - Problem 39
44:27- Problem 40
01:05:55- Problem 41
01:17:21 - Problem 42

Earlier videos:

💡 What you'll gain:

Clear understanding of SQL queries
Insights into solving real interview questions
Confidence to tackle SQL challenges
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#SQL #LeetCodeSolutions #DataScience #dataanalytics #dataengineering
#leetcode50 #leetcode

[Deepskap-vz]

Can you please do video on analytics jobs, pyspark, hive sql, big data.