Target Data Analyst Interview Questions and Answers

Q1. Round 1: This is an initial screening round. You will be tested on the foundation of multiple technologies. SQL (Majority), Python, Visualization skillset and some basic statistics. Round 2 : Advance t...read more
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Q1. Find top 3 students in a class
Ans. 
Identify the top 3 students based on their grades in a class.
• Calculate the average grade for each student

• Sort the students based on their average grades in descending order

• Select the top 3 students
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Guesstimate questions

Q1. Directors ask behavioural questions
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10 sql and 10 python questions

Q1. The difference between union and union all
Ans. 
Union combines and removes duplicates, while Union All combines without removing duplicates.
• Union combines two result sets and removes duplicates

• Union All combines two result sets without removing duplicates

• Union is slower than Union All as it involves removing duplicates

• Union requires both result sets to have the same number of columns and compatible data types
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Q2. SQL query execution order
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