Whenever you are facing the interview you can feel the nervousness which is natural. As soon as the interview start one of the panelists...

Here I have put few questions with answer on AWS certification.

In this post, I will show you how to host a static website on AWS S3

Hey Guys, I came across issue while running Sqoop import to a partitioned table, and found workaround for same, sharing my two cents.....

Problem Statement : Let's consider, We have employee table and we need to find out number of vowels from first_name column. So before...

In this scenario, We will consider source as a oracle table with few duplicate values. Source table structure : create table...

A Fact Table is a central table in a star schema of a data warehouse. A fact table stores quantitative information for analysis and is...

A dimension is a structure, usually composed of one or more hierarchies that categorizes data. If a dimension hasn't got hierarchies and...

What is OLAP? Online Analytical Processing, a category of software tools which provide analysis of data for business decisions. OLAP...

What is data mart ? A data mart (DM) can be seen as a small data warehouse, covering a certain subject area and offering more detailed...