Data warehousing interview questions with examples

Data Warehouse Interview Questions for Freshers

What do you mean by data mining?
What do you mean by OLAP in the context of data warehousing?
What do you understand about a fact table in the context of a data warehouse?
What do you mean by dimension table in the context of data warehousing?

Data Warehouse Interview Questions

What do you mean by data mining?
What do you mean by OLAP in the context of data warehousing?
What do you understand about a fact table in the context of a data warehouse?
What do you mean by dimension table in the context of data warehousing?

What Is Data Warehouse?

Data warehousing (DW) is the repository of a data and it is used for Management decision support system

What Is Business Intelligence?

Business Intelligence is also known as DSS – Decision support system which refers to the technologies, application and practices for the collection

What Is Dimension table?

Dimension table is a table which contain attributes of measurements stored in fact tables. This table consists of hierarchies

What Is Fact table?

Fact table contains the measurement of business processes, and it contains foreign keys for the dimension tables

What Are The Stages of Datawarehousing?

There are four stages of Datawarehousing: 1. Offline Operational Database 2. Offline Data Warehouse 3. Real Time Datawarehouse 4

What Is Data Mining?

Data Mining is set to be a process of analyzing the data in different dimensions or perspectives and summarizing into a useful information

What Is OLTP?

OLTP is abbreviated as On-Line Transaction Processing

What Is OLAP?

OLAP is abbreviated as Online Analytical Processing, and it is set to be a system which collects, manages

What Is Ods?

ODS is abbreviated as Operational Data Store and it is a repository of real time operational data rather than long term trend data

What Is The Difference Between View and Materialized View?

A view is nothing but a virtual table which takes the output of the query and it can be used in place of tables

What skills do you need for a data warehouse job?

Data warehousing careers are often highly technical and require extensive knowledge of computer programming, computer science and information technology

To determine your technical competence, an interview may ask you in-depth interview questions about data warehouses

Below, you can find 15 example general interview questions for a data warehouse position:

Have you always wanted a career in the data industry?
What inspired you to pursue learning data warehouse operations?
What motivated you to apply for this specific role at this company?
Do you enjoy the responsibilities of a database manager?
Do you consider yourself to be a highly organised individual?
What has been your greatest achievement outside of work?

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