Category Archives: database

Introduction to AWS DynamoDB

DynamoDB is a database service provided by Amazon. Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. You can use it to store and retrieve any amount of data without worrying about hardware … Continue reading

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Java High-Level REST Client – Elasticsearch

Elasticsearch is an open-source, highly scalable full-text search and analytics engine. Using this, you can easily store, search, and analyze a large amount of data in real time. Java REST client is the official client for Elasticsearch which comes in … Continue reading

Posted in database, Elasticsearch, fulltextsearch, knoldus, NoSql, sbt, Scala | Tagged , , , | 1 Comment

The curious case of Cassandra Reads

In our previous blog, we discovered how Cassandra handles its write queries. Now it’s time to understand how it ensures all the read requests are fulfilled. Let’s first have an overall view of Cassandra. Apache Cassandra is a free and … Continue reading

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Cassandra Writes: A Mystery?

Apache Cassandra is a free and open-source distributed NoSQL database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. It is a peer to peer database where … Continue reading

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Persistent Read Side in Lagom

Here in this blog, we will be discussing how we can query the lagom’s microservices for retrieving data. I hope you are clear with persistent entity concepts in lagom, if not, you can take a quick overview by going through … Continue reading

Posted in Cassandra, database, knoldus, Microservices, Scala | Tagged | 3 Comments


Are you finding it difficult to understand lagom persistence? Don’t worry because help is right here. In this blog, we will learn about lagom’s persistence with the help of a simple application and also discuss its theoretical aspects. Before we … Continue reading

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Knolx: Introduction to Neo4j APOC

Hi all, Knoldus has organized a 1-hour session on 15th September 2017. The topic was “Introduction to Neo4j APOC”. Many people have joined and enjoyed the session, where we have discussed the concept of Neo4j APOC. I am going to share … Continue reading

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Welcome to the world of Riak Database !!!

Today we are going to discuss the Riak Database which is distributed NoSQL Database. In the current scenario, when there are a lot of data into the world, we can not go for the old technology for storing the data. … Continue reading

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Getting Started Cockroach with Scala: An Introduction

Today we are going to discuss that how can we use the Scala with the Cockroach DB? As we all know that Cockroach DB is a distributed SQL database built on top of a transactional and consistent key-value store and … Continue reading

Posted in Akka, akka-http, database, Scala, Slick | Tagged | 1 Comment

Partitioning in Database

To speed up the query processing, we need to efficiently manage data. And partitioning the database is considered as one of the ways to enhance the processing speed. Using Partitioning, we can divide the data based on some value/field, so … Continue reading

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