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
Mirketa - SQL Server Data Warehouse Developer (3-8 yrs) • 3-8 years
Mirketa Software Pvt. Ltd.
•
3.3
DWH Developer • 0-2 years
Barclays Shared Services Pvt. Ltd
•
3.9
Pune
Azure Data Warehouse Developer • 6-8 years
OceanOfWeb
•
5.0
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