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HCLTech Datastage Developer Interview Questions and Answers

Updated 24 Jul 2024

HCLTech Datastage Developer Interview Experiences

2 interviews found

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(3 Questions)

  • Q1. Difference between join and lookup
  • Ans. 

    Join is used to combine rows from two or more tables based on a related column, while lookup is used to retrieve data from a reference table based on a matching key.

    • Join combines rows from multiple tables based on a related column

    • Lookup retrieves data from a reference table based on a matching key

    • Join can result in duplicate rows if there are multiple matches, while lookup returns only the first matching row

    • Join is use...

  • Answered by AI
  • Q2. Diffrence between fact table and dimension table
  • Ans. 

    Fact table contains quantitative data and measures, while dimension table contains descriptive attributes.

    • Fact table contains numerical data that can be aggregated (e.g. sales revenue, quantity sold)

    • Dimension table contains descriptive attributes for analysis (e.g. product name, customer details)

    • Fact table is typically normalized, while dimension table is denormalized for faster queries

    • Fact table is usually larger in s

  • Answered by AI
  • Q3. Sed command to display last before line
  • Ans. 

    Use sed command to display the line before a specific pattern

    • Use 'sed -n '/pattern/{g;1!p;};h' file.txt' to display the line before the pattern

    • Replace 'pattern' with the specific pattern you are looking for

    • This command will display the line before the pattern in the file

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Basic of etl process, sql, unix

Datastage Developer Interview Questions Asked at Other Companies

asked in IBM
Q1. Your total experience is 6+ in SQL and SSIS, but your relevant ex ... read more
asked in CompuCom
Q2. What is etl and it works, architecture, connectivity
asked in HCL Group
Q3. Difference between Data Stage and informatica
asked in HCLTech
Q4. Diffrence between fact table and dimension table
asked in Cognizant
Q5. Remove duplicate using datastage

Interview questions from similar companies

I applied via Naukri.com and was interviewed in Oct 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Your total experience is 6+ in SQL and SSIS, but your relevant experience in Datastage is 3+, and already you are on a higher package as compared with 3 years Datastage developer, we might tak a pause here...
  • Ans. 

    My experience in SQL and SSIS has prepared me well for Datastage development. I am confident in my ability to quickly learn and excel in this role.

    • My experience in SQL and SSIS has given me a strong foundation in data integration and ETL processes.

    • I have already demonstrated my ability to learn quickly and adapt to new technologies, as evidenced by my success in my current role.

    • I am eager to expand my skillset and take...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I may have been working excessively on SQL and SSIS, but I started learning Datastage ETL tool as well. See, the point is how quick learner I am. There are people who are with 4+ in Datastage, but still I have to explain them the flow. Even when the assigned development is completed, I tune the jobs, remove unwanted columns, RCPs etc. I learned quickly and accelerated myself and that’s why my current employer gave me the opportunity to lead. I think everyone deserves a chance to prove themselves. I thought I’ll get a chance here as well but was unfortunate as they saw only those things what were on Resume, it’s better to drill down in the interviews rather than seeing the less experience. People with less knowledge as well get a good package, but if someone wants to learn then the recruiter should give a shot at least. It’s not the concern of package, I even was ready to negotiate as far as possible because I was getting a lifetime opportunity to work on a newer tech, but all in vain.

Interview Questionnaire 

2 Questions

  • Q1. Tell me about your work experience
  • Q2. It's answer change according to projects you worked on
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview before Aug 2022.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Basic questions about datastage Like difference between lookup,merge,join Questions with dataset and sequential stage. Then few questions asked on transformer stage.
  • Q2. Remove duplicate using datastage
  • Ans. 

    Use Datastage to remove duplicates from a dataset

    • Use a Remove Duplicates stage in Datastage to eliminate duplicate records

    • Configure the Remove Duplicates stage to identify and remove duplicates based on specific key columns

    • Ensure that the dataset is sorted properly before applying the Remove Duplicates stage

  • Answered by AI
Round 3 - Technical 

(1 Question)

  • Q1. In second round most they focused on scenario based questions in both datastage and SQL.
Round 4 - HR 

(1 Question)

  • Q1. Salary and location discussion
Interview experience
4
Good
Difficulty level
-
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Feb 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Explain transformer stage
  • Ans. 

    Transformer stage is a Datastage stage used for data transformation and manipulation.

    • Transformer stage is used to perform complex data transformations and manipulations.

    • It allows users to define custom logic using graphical mapping.

    • It supports various functions and operators for data manipulation.

    • Transformer stage can be used to filter, aggregate, join, and sort data.

    • It can also be used to perform calculations, convers...

  • Answered by AI

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Nov 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Mostly scenario based questions according to domain i got insurance based questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn to answer scenario based and how you approach from all different technologies datastage Sql Unix

I applied via Referral and was interviewed before Apr 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Technical questions on eloqua, email marketing

Interview Preparation Tips

Interview preparation tips for other job seekers - Be comfident while answering

Interview Questionnaire 

1 Question

  • Q1. Time management

I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. They asked about dbms questions in the form of table formate
  • Q2. They asked code for some python program

Interview Preparation Tips

Interview preparation tips for other job seekers - Firstly they conducted computer based technical exam and then after qualifying that then we will go for face face interview and then lastly HR round will be held.

HCLTech Interview FAQs

How many rounds are there in HCLTech Datastage Developer interview?
HCLTech interview process usually has 1 rounds. The most common rounds in the HCLTech interview process are Technical and One-on-one Round.
How to prepare for HCLTech Datastage Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at HCLTech. The most common topics and skills that interviewers at HCLTech expect are Datastage, SQL, Data Warehousing, Agile and ETL.
What are the top questions asked in HCLTech Datastage Developer interview?

Some of the top questions asked at the HCLTech Datastage Developer interview -

  1. Diffrence between fact table and dimension ta...read more
  2. Sed command to display last before l...read more
  3. Difference between join and loo...read more

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HCLTech Datastage Developer Interview Process

based on 2 interviews

Interview experience

4
  
Good
View more
Join HCLTech Find your spark and discover what drives you forward

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HCLTech Datastage Developer Salary
based on 49 salaries
₹2.6 L/yr - ₹9.9 L/yr
26% less than the average Datastage Developer Salary in India
View more details

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based on 2 reviews

5.0/5

Rating in categories

3.1

Skill development

5.0

Work-life balance

3.1

Salary

5.0

Job security

2.2

Company culture

2.1

Promotions

5.0

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