Ravi NallainTowards Data EngineeringHadoop Components and Architecture — Hadoop v1.0We already know from the previous introductory article on big data, that it is efficiently handled by a cluster of machines. But, wouldn’t…5 min read·Apr 20, 2023----
Ravi NallainTowards Data EngineeringWhat is Big Data? How to handle it?Article 1 in Big Data Series4 min read·Apr 8, 2023----
Ravi NallaPractice Big Data for freeHow to practice Big Data for free using GCP???6 min read·Mar 6, 2023----
Ravi NallaPivot SQL Server data using Temporary Tables on TableauDeal with read-only SQL Server database, Pivot Query, Tableau altogether using Temporary (#temp) tables4 min read·Aug 20, 2022----
Ravi NallaflatMapValues in ScalaflatMapValues is a powerful function to assign one key to multiple values in a row. Let’s look at an example:2 min read·Apr 30, 2022----
Ravi NallaPython Hack for RTF textI deal with a read-only MS SQL Server data base day in and out to create reports. As with many of the legacy systems where we see unwanted…1 min read·Jan 22, 2022----