ER vs Dimensional Modeling simplified under 10 Minutes
In this video we will go through the main differences between ER modeling and Dimensional modeling by using simple and straight forward examples, and we will understand the importance of dimensional modeling in Data Warehouse design
Apache Kafka Components
What Is Apache Kafka? Apache Kafka is an open source project, initially created by LinkedIn, that is designed to be a distributed, partitioned, replicated commit log service. It provides the functionality of a messaging system, but with a unique design, which we will investigate in more detail in this Article. Kafka was designed with a […]
Dimension Keys – Part 1 – Natural Keys | Data Warehouse
Dimensions tables are core part of any Data Warehouse modeling. In general dimension tables store details side of any event or business process, for example, for a purchase operation from a retail store we will have dimension tables to store customer information, product information, store information, and so on, on the other hand, Fact tables […]
Functions in Scala – Part 1 | Scala
Scala is a a multi-paradigm language that supports both functional and object-oriented programming with a growing community and many useful features Scala worth learning, and it has been adopted by big enterprises such as Linkedin , Twitter, and many others. As Functional programming is one of the main strength points in Scala and and understanding […]
Migrate Files from local files system to Amazon S3 with Python Application | AWS S3 | Python
Amazon Simple Storage Service (Amazon S3) is an object storage service that offers industry-leading scalability, data availability, security, and performance. S3 storage well fit in different use cases, such as websites, mobile applications, backup and restore, archiv2e, enterprise applications, IoT devices, and big data analytics. Amazon S3 provides easy-to-use management features so you can organize […]
Create Scala Project on Intellij with Scala Worksheets | Scala
Scala is a a multi-paradigm language that supports both functional and object-oriented programming with a growing community and many useful features Scala worth learning, and it has been adopted by big enterprises such as Linkedin , Twitter, and many others. When you start experimenting Scala you can use Scala interactive REPL (Read Evaluate Print Loop) […]
Setup Apache Spark environment on Windows | Apache Spark
Apache Spark is easy to use, unified platform for all purposes of big data processing, and equipped with rich set of APIs for different application needs as Spark DataFrame and Spark SQL for structured data processing, Spark Streaming and Structured Streaming for streaming applications, Spark MLib for machine learning applications, Spark Graphx for Graph analytics […]
Apache Spark Application Execution Mode | Apache Spark
Apache Spark is a powerful processing platform for big data applications that supports different big data processing types. In this article we will discover together how Apache Spark application can be executed in multiple modes, depending on the environment architecture and on the application requirements. Before going into details, if you would like to setup […]
Setup Free AWS RDS Instance | AWS RDS
AWS provides set of database services that cover most of the applications needs from a database, such as relational database, NoSQL database, Graph databases, and a database customized for Data Warehouse applications AWS RDS is available with 6 database engines In this tutorial we will go step by step through the process of creating a […]
Setup AWS CLI for Windows | AWS Command Line Tools
AWS provides a set of command line tools, to give administrators and developers access to manage their own AWS services using local clients besides management console access AWS CLI v2 Setup In the following steps, we will go through how to set up and configure AWS CLI to connect to your AWS account and manage […]
