Solving SQL Interview Query | Ungroup given input data | FAANG Interview Query
In this video, we will solve an SQL Interview query which was asked during a interview by a FAANG company. The problem statement is to ungroup the given input data.
We need to write a query to split the given input data into multiple records as per the expected output.
To solve this problem, I will be using recursive SQL query. I will solve it in PostgreSQL but similar solution will also work in all the major RDBMS such as MySQL, MSSQL and Oracle.
All the scripts, dataset and sql queries can be downloaded for free from my website. You will also find solution to this problem in PostgreSQL, Oracle, MySQL and Microsoft SQL Server in my blog.
✅ Link to download the scripts:
Timestamp:
00:00 Intro
00:48 Understanding the problem statement
02:22 Deciding the approach to solve this SQL problem
03:21 Syntax and execution process of Recursive SQL Query
05:15 Writing the SQL Query to solve the problem
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