Data Warehouse Developer
Data Warehouse Developer Interview Questions and Answers
Updated 10 May 2020
Q1. Delete duplicate records. I explained 4 ways.
Ans.
There are multiple ways to delete duplicate records in a data warehouse.
Using the DISTINCT keyword in a SQL query
Using the GROUP BY clause in a SQL query
Using the ROW_NUMBER() function in SQL to identify and delete duplicates
Using temporary tables or common table expressions (CTEs) to identify and delete duplicates
Data Warehouse Developer Jobs
Data Warehouse Developer • 4-6 years
R Systems International
•
3.3
₹ 11 L/yr - ₹ 21 L/yr
Pune
Data Warehouse Developer • 1-3 years
IDS Next
•
3.4
Navi Mumbai
Data Warehouse Developer I • 4-7 years
Starkey Laboratories India Pvt. Ltd.
•
4.3
₹ 8 L/yr - ₹ 12 L/yr
Noida
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