What is MongoDB and Cassandra?

Cassandra is designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. 2. MongoDB : MongoDB is a cross-platform document-oriented and a non relational (i.e NoSQL) database program.

Is MongoDB same as Cassandra?

Apache Cassandra supports a query language called the Cassandra Query Language (CQL) whereas MongoDB does not have support for any query language and can only structure queries in JSON fragments. If support for a query language is required, Apache Cassandra should be preferred over MongoDB.

What is Cassandra used for?

Apache Cassandra is a distributed database management system that is built to handle large amounts of data across multiple data centers and the cloud. Key features include: Highly scalable. Offers high availability.

Is Cassandra better than MongoDB?

Conclusion: The decision between the two depends on how you will query. If it is mostly by the primary index, Cassandra will do the job. If you need a flexible model with efficient secondary indexes, MongoDB would be a better solution.

What is MongoDB good for?

MongoDB is built on a scale-out architecture that has become popular with developers of all kinds for developing scalable applications with evolving data schemas. As a document database, MongoDB makes it easy for developers to store structured or unstructured data. It uses a JSON-like format to store documents.

CASSANDRA VS MONGODB | MAJOR DIFFERENCES TO CONSIDER

Why use MongoDB vs SQL?

SQL databases are used to store structured data while NoSQL databases like MongoDB are used to save unstructured data. MongoDB is used to save unstructured data in JSON format. MongoDB does not support advanced analytics and joins like SQL databases support.

Is MongoDB better than SQL?

MongoDB offers faster query processing but with an increased load and system requirements. Without knowing the purpose of use, it is not possible to classify SQL Databases or NoSQL Databases like MongoDB as better or worse than the other. There are various factors that drive the MongoDB vs SQL decision.

Which is easy to learn MongoDB or Cassandra?

I will mention that MongoDB has a reputation of being very developer-friendly, due to the fact that you can write code and store data without having to define a schema. Cassandra has a little steeper learning curve (IMO).

How is data stored in Cassandra?

Data in Cassandra is stored as a set of rows that are organized into tables. Tables are also called column families. Each Row is identified by a primary key value. Data is partitioned by the primary key.

Is Cassandra a SQL?

For all intents and purposes, CQL is SQL, so in the strictest sense Cassandra is an SQL database. However, most people closely associate SQL with the relational databases it is usually applied to.

Who uses Cassandra database?

One open source application, Apache Cassandra, enables organisations to process large volumes of fast moving data in a reliable and scalable way. That's why companies like Facebook, Instagram and Netflix use Apache Cassandra for mission-critical features.

What is Cassandra technology?

Apache Cassandra is an open source NoSQL distributed database trusted by thousands of companies for scalability and high availability without compromising performance. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure make it the perfect platform for mission-critical data.

What is Cassandra database?

Cassandra is a free and open-source, distributed, wide-column store, NoSQL database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.

Is Cassandra a document DB?

Yes, Apache Cassandra is a NoSQL Database. Apache Cassandra is a type of NoSQL Columnar Databases.

What is Cassandra in AWS?

Amazon Managed Apache Cassandra Service is a scalable, highly available, and managed Apache Cassandra–compatible database service that enables you to run your Cassandra workloads in the AWS Cloud using the same Cassandra application code, Apache 2.0–licensed drivers, and tools that you use today.

How does MongoDB store data?

In MongoDB, data is stored as documents. These documents are stored in MongoDB in JSON (JavaScript Object Notation) format. JSON documents support embedded fields, so related data and lists of data can be stored with the document instead of an external table. JSON is formatted as name/value pairs.

Is Cassandra a column family?

However, in Cassandra, columns are not defined (although column families are), so it's possible to add any column to a column family at any time. Cassandra does not force all columns on individual rows. In Cassandra, a table can be defined as a super column family or can contain columns.

How data is written to Cassandra?

How is data written? Cassandra appends writes to the commit log on disk. The commit log receives every write made to a Cassandra node and these durable writes survive permanently even if power fails on a node. Cassandra also stores the data in a memory structure called memtable and to provide configurable durability.

What is the advantage of Cassandra?

One of the biggest advantages of using Cassandra is its elastic scalability. Cassandra cluster can be easily scaled-up or scaled-down. Interestingly, any number of nodes can be added or deleted in Cassandra cluster without much disturbance.

Which is best NoSQL database?

What are the disadvantages of Cassandra?

Which database is fastest?

Cassandra is arguably the fastest database out there when it comes to handling heavy write loads. Linear scalability. That is, you can keep adding as many nodes to a cluster as you want, and there will be a zero increase in complexity or brittleness of the cluster.

What language does MongoDB use?

MongoDB uses the MongoDB Query Language (MQL), designed for easy use by developers. The documentation compares MQL and SQL syntax for common database operations.

Which is the best database?