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Mon, Oct 12, 2026 / Ideas for a clearer worldINDEPENDENT INSIGHTS · PRACTICAL TOOLS · EXPLAINERS
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Author: Taylor Emma

A senior editor for The Mars that left the company to join the team of SenseCentral as a news editor and content creator. An artist by nature who enjoys video games, guitars, action figures, cooking, painting, drawing and good music.

Basics

Types of Relationships

Inheritance When we say, “a student IS-A person”, “an employee IS-A person” “a car IS-A vehicle”, “a bus…

August 13, 2021 · Taylor Emma
Basics

Constructor and Destructor

Whenever you create an object, you need to construct that object, meaning you assign all the instance variables…

August 13, 2021 · Taylor Emma
Basics

Designing Real-World Systems

This last section is all about examples of real world problems, and what solutions we can use. But,…

August 13, 2021 · Taylor Emma
Basics

Spark Streaming

With Spark core, we can analyze batch of data (say, daily). With Spark Streaming, we analyze data in…

August 13, 2021 · Taylor Emma
Basics

Streaming Data

So far we assumed data is sitting on the cluster, but, we didn’t say how to get the…

August 13, 2021 · Taylor Emma
Basics

Query Engines

There are handful of solution to query the data in the whole cluster, or from a certain database.…

August 13, 2021 · Taylor Emma
Basics

Cassandra

A distributed NoSQL database with no point of failure (no master node). It has a query language CQL,…

August 13, 2021 · Taylor Emma