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Spark related assignment
Use the sorted() function in Python to sort numbers in a list.
Use the sorted() function with the list of numbers as input.
sorted() function returns a new sorted list without modifying the original list.
You can use the reverse parameter in sorted() to sort in descending order.
Example: numbers = [3, 1, 4, 1, 5, 9, 2] sorted_numbers = sorted(numbers) print(sorted_numbers)
I have experience working as a Data Engineer for 5 years in a tech company, where I was responsible for designing and implementing data pipelines, optimizing data storage and retrieval, and collaborating with cross-functional teams.
Designed and implemented data pipelines to extract, transform, and load data from various sources
Optimized data storage and retrieval processes to improve efficiency and performance
Collabora...
Continuous learning through online courses, books, and hands-on projects.
Regularly enroll in online courses related to data engineering to stay updated on new technologies and best practices.
Read books and articles on data engineering to deepen understanding of concepts and techniques.
Work on hands-on projects to apply theoretical knowledge and gain practical experience.
Participate in data engineering communities and f...
I applied via Approached by Company and was interviewed in Sep 2023. There were 3 interview rounds.
You get an assignment with a deadline of 4-5 days. It's basically the SQL queries and Flask API. So the assignment will be evaluated on code quality and time taken for execution.
Use recursive CTE to print numbers 1-50 in SQL
Use recursive Common Table Expression (CTE) to generate numbers from 1 to 50
Start with anchor member as 1 and recursively add 1 until reaching 50
Select the generated numbers from the CTE
I attended interview for data engineer intern in March 2024. First round was written test which consisted of 30 questions of 50 marks, Out of which 27 questions are MCQ type and 3 questions are coding.
The coding questions are
1. Write program to find the Fibonacci series
2. Program to check if a linked list is palindrome or not
3. Query to find the Nth highest salary
I applied via Campus Placement
I was assigned a fairly straightforward data analysis task with a one-week deadline. For this task, we were required to learn Pyspark SQL.
DataGrokr interview questions for popular designations
I applied via Internshala and was interviewed before May 2023. There were 2 interview rounds.
I applied via Campus Placement and was interviewed before Feb 2022. There were 4 interview rounds.
Related to python, SQL and pyspark.
Top trending discussions
ETL stands for Extract, Transform, Load. It is a process used in data warehousing to extract data from various sources, transform it into a consistent format, and load it into a target database.
ETL stands for Extract, Transform, Load
Extract: Involves extracting data from various sources such as databases, applications, and files
Transform: Involves cleaning, filtering, and transforming the extracted data into a consiste...
posted on 4 May 2019
I applied via Naukri.com and was interviewed in Oct 2018. There were 3 interview rounds.
I applied via Approached by Company and was interviewed in Sep 2023. There was 1 interview round.
posted on 26 Mar 2024
I applied via Approached by Company and was interviewed in Feb 2024. There was 1 interview round.
based on 7 interviews
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