OPEN SOURCE DATABASES THAT WORK BEST FOR IOT.

IOT is a network in which various platforms are connected to each other in such a manner that they share a common platform on the basis of their usage and on the environment surrounding them.

IOT is trending this year and from now on there are 70% chances that IOT will rule the entire world. just visualize a scenario in which every device in your home and your workplace is connected with each other in such a manner that you no longer have to worry even if you are getting late for somewhere! or when even the smallest of your health parameter will be monitored on daily basis, which are otherwise ignored.

IOT showcases the best results when worked along with some promising data bases. and today, in this blog post we are going to gain a brief intro about a few of these databases.

But before moving on to the selection of the database, lets read a few factors to be considered before:-

• size, scale and indexing
• portability
• query languages
• archiving
• user friendly
• process modeling and transactions handling

1. MongoDB

It is a free and open source cross-platform document oriented database program. JSON-like documents with schemas are used by MongoDB. It allows the organizations to store and process data from any context which can go through real time analysis and provides flexibility in changing the schema.

other major advantages include:

• document-oriented
• highly powerful database
• general purpose use

 

2. InfluxDB

Released in 2013, InfluxDB is one of the recent database. the best part about this database is that is made by using G programming language which is based on LevelDB which is a key-value database. It is used to optimize and handle time series data.

the advantages of using InfluxDB for IOT above other databases include:

• indexing of series made easy
• it has an SQL-like query language.
• it provides automatic data down sampling
• built-in linear interpolation for missing data
• continues queries to calculate aggregates

 

3. CrateDB

 It is an open source database and is written in Java. It includes components from Facebook Presto, Apache Lucene, Elasticsearch and Netty which is designed for high scalability and flexibility. CrateDB is the choice for the innovators dealing with new IOT solutions.

• millions of data points per second
• real time series
• dynamic solutions
• easy to use and integrate by any developer
• built-in data replication and cluster
• direct device-to-database integration
• works with Kafka, Grafana, NodeRED

 

4. RethinkDB

Amongst all the open database list, RethinkDB has an edge above all. It introduces an exciting new access model by transposing the traditional database architecture. It can continuously push updated query results to applications in real time, when a command is given to it by the developer. It serves as a database real time repository and message broker of the system state, which is allowed by change feed.

• RethinkDB has an adaptable query language which is very easy to set up and learn.
• plug and play function of nodes in real time, without any downtime for even a single second which helps in the easy addition of nodes.
• it offers various mathematical operators such as Floor, Ceil and Round.
• SSL access for secured access via public internet.
• if any primary server fails, commands are automatically transferred to a new server.

 

5. Apache Cassandra

Apache Cassandra is a free and open source distributed NoSQL database management system. I was released in 2008 with an intention to ease out the handling of huge data through many commodity servers, providing high availability without any failure. Cassandra works excellent at utilizing lots of time series data that comes directly from devices, users, sensors, and similar mechanisms.

The premium advantages of using Apache Cassandra are:-

• fault tolerant
• decentralized
• scalable
• durability and elasticity
• professionally supported

 

6. SQLite

 SQLite is a process library that provides a self-contained transactional SQL database engine. Due to its portability and small footprint, it has a major impact on game and mobile application development. It is a fit for use application for phones, set-top boxes, televisions, game consoles, cameras, watches, thermo stars, medical equipments and robots. SQLite provides fast and reliable data services to applications that would otherwise have dodgy connectivity.

• authenticity
• no dependencies
• no prior set up required
• small memory footprint

 

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