Pfizer Products India Senior Data Manager Interview Questions, Process, and Tips

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Q1. Using sql extract substring of name
Ans. 
Using SQL to extract substring of name
• Use the SUBSTRING function in SQL to extract a specific portion of a string

• Specify the starting position and length of the substring to be extracted

• Example: SELECT SUBSTRING('John Doe', 1, 4) AS First_Name will return 'John'
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Q2. Using sql print cummulative sum of sales
Ans. 
Use SQL to print cumulative sum of sales
• Use the SUM() function to calculate the cumulative sum of sales

• Utilize the OVER() clause with ORDER BY to specify the order of the cumulative sum

• Example: SELECT date, sales, SUM(sales) OVER (ORDER BY date) AS cumulative_sales FROM table_name
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Q1. Difference rank dense rank and rownumber
Ans. 
Rank, Dense Rank, and Row Number are window functions used in SQL to assign a rank to each row based on a specific criteria.
• Rank assigns a unique rank to each row based on the specified order.

• Dense Rank assigns a unique rank to each row without any gaps, even if there are ties.

• Row Number assigns a unique sequential integer to each row, without any regard to the order of the rows.
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Q2. Questions from join condition
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Q1. Behaviural Questions
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Q1. Tableau Desktop Technical
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Q1. About your self
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17 questions including mcq, case study, sql coding

Q1. 10 quiz about ML questions, case study
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Tableau Developer

I was given an assignment where I had to build dashboard with final story within 1 hour

Q1. Why Novo? Why this role?
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Q1. Director Round with department head
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Q1. Affiliate Round with either US folks or Denmark folks
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Q1. What is your family background?
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Q2. What are your strengths and weaknesses?
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Q3. Tell me about yourself.
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Q4. What are your salary expectations?
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Q1. About Sql, project and work we did
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