WarpDrive Tech Works Business Analyst Intern Interview Questions and Answers

I was given a pdf file containing 3 Problem statements along with the output for which I had to write SQL queries.

Q1. Theoretical Questions related to SQL were asked like types of join, the difference between union and join, related to my project, and some behavioral questions.
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Q2. What are different types of Joins?
Ans. 
Joins are used to combine data from two or more tables based on a related column between them.
• Inner Join: returns only the matching rows from both tables

• Left Join: returns all rows from the left table and matching rows from the right table

• Right Join: returns all rows from the right table and matching rows from the left table

• Full Outer Join: returns all rows from both tables

• Cross Join: returns the Cartesian product of b
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Q3. What is the Difference between Union and Joins
Ans. 
Joins combine rows from two or more tables based on a related column, while unions combine rows from two or more tables with the same structure.
• Joins are used to combine data from different tables based on a related column

• Unions are used to combine data from tables with the same structure

• Joins can be inner, left, right, or full, while unions are always a combination of all rows

• Joins can have multiple conditions, while ...read more
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Q1. Scenario-based questions on SQL
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Q1. Questions related to me like what my parents do etc. and their company profile.
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