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Hevo Data Senior Data Analyst Interview Questions and Answers
Hevo Data Senior Data Analyst Interview Experiences
1 interview found
Anonymous
(1 Question)
- Q1. Basic to medium level questions on SQL
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Interview questions from similar companies
I applied via LinkedIn and was interviewed in Dec 2024. There were 2 interview rounds.
Basic Hacker Rank SQL Questions 2 . and 10 MCQ based
(3 Questions)
- Q1. Select customer, sum(amt ) as total_amt from t1 group by customer how many no. of rows it will return and explain this table t1 column name-> dept customer item amt
- Q2. Select * , sum(amt) over (partition by customer) as total_amt from t2
- Ans.
The query selects all columns and calculates the total amount for each customer in table t2.
The query uses a window function to calculate the sum of 'amt' for each customer in the 't2' table.
The 'partition by customer' clause divides the result set into partitions based on the 'customer' column.
The 'select *' statement selects all columns from the table along with the calculated total amount.
The 'sum(amt) over (partiti...
- Q3. How many Customers has purchased same item on the Same day more than onnce
- Ans.
To find customers who purchased the same item multiple times on the same day.
Identify unique customers who purchased the same item multiple times on the same day
Check for duplicate transactions by customer and item on the same day
Aggregate the data to count the number of customers who made multiple purchases of the same item on the same day
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Oct 2024. There were 3 interview rounds.
6 mcqs and 2 sql questions
(5 Questions)
- Q1. Difference between having and where in sql
- Ans.
In SQL, 'HAVING' is used with GROUP BY to filter groups, while 'WHERE' is used to filter rows before grouping.
HAVING is used with GROUP BY to filter groups based on aggregate functions
WHERE is used to filter rows before grouping
HAVING is used after GROUP BY in the query, while WHERE is used before GROUP BY
Example: SELECT department, AVG(salary) FROM employees GROUP BY department HAVING AVG(salary) > 50000;
Example: S
- Q2. Sql joins and it types
- Q3. Window functions and subqueries
- Q4. Sql scenario question based on joins
- Q5. Kpi's and metrics
(1 Question)
- Q1. Business problem related to case study
Interview Preparation Tips
Skills evaluated in this interview
I applied via Instahyre and was interviewed in Jul 2024. There were 3 interview rounds.
HackerEarth based assessment.
1. 8 qs were stats & prob based multiples choices
2. 2 were medium level sql questions.
(2 Questions)
- Q1. Started with basic sql question like diff btw nosql & sql, join etc
- Q2. Table were given in google sheet & had to write basic level queries on them eg. cte's, agg function, lead & lag func
(2 Questions)
- Q1. The interviewer was not serious at all, asked silly quizzes instead of business case study, KPI & metrics
- Q2. Prepare for logical reasoning
Interview Preparation Tips
I applied via Company Website and was interviewed in Apr 2024. There were 2 interview rounds.
Consisted of 10 questions, 2 SQL medium level questions and remaining easy aptitude, profit loss, work time etc
(2 Questions)
- Q1. SQL visualisation
- Q2. SQL Questions theory
Interview Preparation Tips
(2 Questions)
- Q1. Introduce Yourself
- Ans.
I am a data analyst with a background in statistics and experience in analyzing large datasets to drive business decisions.
Graduated with a degree in Statistics
Proficient in data analysis tools such as Python, R, and SQL
Experience in creating visualizations to communicate insights
Strong problem-solving skills
- Q2. Skills you have
(1 Question)
- Q1. ML questions related to previous projects
Shekhar Bisht
(1 Question)
- Q1. Questions on self join
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Hevo Data Senior Data Analyst Interview Process
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