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HDFC Bank Data Science Interview Questions and Answers
HDFC Bank Data Science Interview Experiences
1 interview found
Anonymous
I applied via LinkedIn and was interviewed before Sep 2023. There were 2 interview rounds.
3 hour oa - binary search , graph , dp
(2 Questions)
- Q1. What is object orinted programing ?
- Ans.
Object-oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
Objects are instances of classes, which define the structure and behavior of the objects.
Encapsulation, inheritance, and polymorphism are key principles of object-oriented programming.
Examples include Java, C++, and Python, which are popular object-oriented programming languages.
- Q2. Write sql query for the bank transaction ?
- Ans.
SQL query to retrieve bank transactions data.
Use SELECT statement to retrieve data from transaction table.
Filter data based on account number or transaction date.
Group data by transaction type or amount for analysis.
Skills evaluated in this interview
Interview questions from similar companies
Selected
I applied via Company Website and was interviewed in Apr 2024. There was 1 interview round.
(2 Questions)
- Q1. Model development old projects
- Q2. Difference betweenhaving and where clause
- Ans.
HAVING is used with GROUP BY to filter groups, WHERE is used to filter rows
HAVING is used with GROUP BY to filter groups based on aggregate functions
WHERE is used to filter rows based on conditions
HAVING is applied after GROUP BY, WHERE is applied before GROUP BY
Example: SELECT department, AVG(salary) FROM employees GROUP BY department HAVING AVG(salary) > 50000;
Example: SELECT * FROM employees WHERE age > 30;
Interview Preparation Tips
- Econometrics
Skills evaluated in this interview
Sibankar
I was interviewed before May 2023.
(1 Question)
- Q1. Basic sql and data science related
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