SQL Problem Solving: Deriving Grandparent Using Self Join | Step-by-Step Tutorial
Welcome to our SQL problem-solving playlist! 🚀 In this session, we'll dive into a real-world scenario where we have a family table with child and parent columns. Our goal is to derive the grandparent column using a self-join operation. Follow along as we break down the problem step-by-step, providing a comprehensive tutorial on using self join in SQL.
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Table creation & insertion script:
CREATE TABLE family
(
child VARCHAR(50),
parent VARCHAR(50)
);
INSERT INTO family VALUES('Chandragupta',null),('Bindusara','Chandragupta'),('Ashok','Bindusara'),('Mahendra','Ashok');
#sql #selfjoin #join #interview
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