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Data Modeling in Cassandra

In Relational Data Models, we model relation/table for every object in the domain. In case of Cassandra, this is not exactly the case.This post would elaborate more on what all aspects we need to consider while doing data modelling in Cassandra. Following is the rough overview of Cassandra Data Modeling. As we can see from the diagram above, Conceptual Data ...

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Top 5 NoSQL Database Programmers Should Learn in 2019

Though it’s not mandatory for a Java or Web developers to learn NoSQL database the world is moving in that direction and both Java and Web developer should be familiar with NoSQL databases. If you are wondering what is NoSQL database means then here is a quick overview. A NoSQL database refers to non SQL, non-relational or not only SQL) ...

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A guide to the InfluxDBMapper and QueryBuilder for Java Part: 2

Previously we setup an influxdb instance running through docker and we also run our first InfluxDBMapper code against an influxdb database. The next step is to execute some queries against influxdb using the QueryBuilder combined with the InfluxDBMapper. Let’s get started and select everything from the table H2OFeetMeasurement. 01 02 03 04 05 06 07 08 09 10 private static ...

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NoSql Databases: Cassandra vs Mongo vs Redis DB Comparison


1. What are NoSql Databases? NoSql (Not only Sql) databases are non-relational databases that are horizontally scalable, persist semi or unstructured data and have flexible schemas. These databases support multiple data models such as key-value, document, column-family, graph based, in-memory etc. for managing and accessing data. NoSql databases are best suited for building modern applications, which require large data and ...

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