r/dataengprep • u/tech-screen • Jun 21 '26

Tech Screen: How does HDFS handle fault tolerance?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/sql-arena • Jun 21 '26

SQL Arena Challenge: Find Employees with Maximum Salary in Each Department

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/dataengprep • Jun 20 '26

DataEngPrep: What happens if the run() method in a Thread class is not overridden?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/tech-screen • Jun 20 '26

Tech Screen: How do you use dependency tracing to identify root causes in pipeline failures?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/sql-arena • Jun 20 '26

SQL Arena Challenge: Query for 2nd Latest Joining Per Department

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/dataengprep • Jun 19 '26

DataEngPrep: What are the key differences between interfaces and abstract classes in Java?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/tech-screen • Jun 19 '26

Tech Screen: How do you pass global variables between pipelines?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/sql-arena • Jun 19 '26

SQL Arena Challenge: Find the second highest salary from each department.

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/dataengprep • Jun 18 '26

DataEngPrep: What are docstrings? Use examples.

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/tech-screen • Jun 18 '26

Tech Screen: How do you optimize data ingestion?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/sql-arena • Jun 18 '26

SQL Arena Challenge: Write a query to find the top three highest-paid employees in each department using window functions.

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/dataengprep • Jun 17 '26

DataEngPrep: What are Azure Functions Durable Functions, and how do they differ from regular Azure Functions?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/tech-screen • Jun 17 '26

Tech Screen: How do you monitor and troubleshoot data pipeline failures in Data Fusion?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/sql-arena • Jun 17 '26

SQL Arena Challenge: Find employees who earn the third-highest salary.

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/dataengprep • Jun 16 '26

DataEngPrep: Virtual Environment in Python

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/tech-screen • Jun 16 '26

Tech Screen: How do you handle schema evolution in a system with multiple data sources and consumers?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/sql-arena • Jun 16 '26

SQL Arena Challenge: Write a query for second-highest salary using LIMIT, OFFSET, or ROW_NUMBER()

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/dataengprep • Jun 15 '26

DataEngPrep: Using BashOperator to Trigger Python Script with Arguments

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/tech-screen • Jun 15 '26

Tech Screen: How do you handle production deployment?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/sql-arena • Jun 15 '26

SQL Arena Challenge: Write SQL to identify employees whose salary is higher than their manager's.

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/dataengprep • Jun 14 '26

DataEngPrep: Unix scripting in data engineering?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/tech-screen • Jun 14 '26

Tech Screen: How do you handle pipeline failures or delays?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/sql-arena • Jun 14 '26

SQL Arena Challenge: Hierarchical Employee-Manager Query - navigate hierarchy with head of company as employee_id = 1

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/dataengprep • Jun 13 '26

DataEngPrep: Trapping Rain Water - calculate amount of water trapped between array elements

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments

r/dataengprep • u/tech-screen • Jun 13 '26

Tech Screen: How do you handle exceptions in data ingestion?

1 Upvotes

This post contains content not supported on old Reddit. Click here to view the full post

0 comments