Providence Global Center Data Engineer Interview Questions and Answers

Q1. 3rd largest salary from each department(window function)
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Q1. Explain process in adf
Ans. 
ADF stands for Azure Data Factory, a cloud-based data integration service that allows you to create, schedule, and manage data pipelines.
• ADF allows you to create data-driven workflows for orchestrating and automating data movement and data transformation.

• You can use ADF to ingest data from various sources, process and transform the data, and then publish the data to different destinations.

• ADF supports a wide range of d...read more
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Q1. Tell us about yourself?
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Q2. What are joins in sql?
Ans. 
Joins in SQL are used to combine data from two or more tables based on a related column.
• Joins are used to retrieve data from multiple tables in a single query

• Common types of joins include inner join, left join, right join, and full outer join

• Join conditions are specified using the ON keyword and a related column in each table

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
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Q3. Have you done any SQL projects?
Ans. 
Yes, I have worked on several SQL projects.
• Developed a database for a retail company to manage inventory and sales data using SQL Server

• Created complex queries to extract data from multiple tables for a financial services firm

• Optimized database performance by indexing and partitioning tables for a healthcare organization
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Q4. How will you remove duplicates in SQL?
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Duplicates can be removed in SQL using DISTINCT keyword or GROUP BY clause.
• Use DISTINCT keyword to select unique values from a single column.

• Use GROUP BY clause to group rows with same values and select unique values from multiple columns.

• Use HAVING clause to filter out groups with count greater than 1.

• Use INNER JOIN to join tables and select unique values from multiple tables.

• Use ROW_NUMBER() function to assign a uniq...read more
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Q5. Are you a team player or an individual contributor?
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Q1. Would you be comfortable working from Bangalore office?
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Q1. Questions about C# language features
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Q2. Azure functions and other services
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Q1. DevOps concepts
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Q2. Angular basics
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Q1. What is the difference between working from home and working from the office, and what are the benefits of each?
Ans. 
Working from home offers flexibility and comfort, while working from the office provides structure and social interaction.
• Working from home allows for flexibility in schedule and eliminates commute time.

• Working from the office provides a structured environment and opportunities for in-person collaboration.

• Benefits of working from home include increased productivity and work-life balance.

• Benefits of working from the off...read more
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Q1. All Programing ques
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1 hours, java, vs code

1 hour, good, aptitude

Q1. Data structure question asked
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Basic aptitude questions and questions on React

Asked for printing patterns in a loop

Q1. Explain your code. Talked about projects, questions on array and a Water-jug problem puzzle question
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Q1. Asked about family and residence.
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