META Interview Question | SQL Interview Question no 16 | Daily SQL Practice | Advanced SQL

Pubblicato il: 28 ottobre 2024
sul canale di: The Data -Tech Club

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In this SQL tutorial, we calculate the 'famous percentage' of each user based on their unique followers. Using a sample table, we’ll guide you step-by-step through counting followers, calculating total unique users, and finding each user’s fame percentage. This tutorial covers essential SQL techniques, including COUNT(), DISTINCT, Common Table Expressions (CTEs), and aggregation functions, to help you understand how to analyze and derive meaningful insights from social data. Perfect for data analysts, SQL learners, and anyone interested in mastering complex queries. Watch till the end for a complete breakdown of the code!
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----------------------Create Table Script----------------------------------------

CREATE TABLE famous (user_id INT, follower_id INT);

INSERT INTO famous VALUES
(1, 2), (1, 3), (2, 4), (5, 1), (5, 3),
(11, 7), (12, 8), (13, 5), (13, 10),
(14, 12), (14, 3), (15, 14), (15, 13);

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