Top 10 Open Source Databases

Open source databases in the cloud:
If you are using cloud management software or a cloud broker service, it’s imperative to have the option to store your information in the kind of database you require.
Some of the best cloud databases are:

• Amazon relational database
• Microsoft Azure SQL database
• Oracle database
• IBM Db2 on cloud
• Google Cloud SQL

Lists of the best free and open source database management systems and their type:

• PostgreSQL: Object-Relational Database Management System
• MariaDB: Relational Database Management System
• CockroachDB: Relational Database Management System
• Neo4j: Graph Database Management System
• CoughDB: NoSQL Database Management System
• RethinkDB: Distributed Document-oriented Database Management
• Redis: NoSQL Database Management System
• SQLite: Relational Database Management System
• Cassandra: NoSQL Database Management System
• Timescale: NoSQL Database Management System

PostgreSQL:
PostgreSQL is an object-relational database management system, founded on July 8, 1996. Developed by the PostgreSQL Global Development Group, it is written in C and works in most UNIX-like operating systems and Windows.

Features:
a. PostgreSQL works with every significant language and middle-ware.
b. It bolsters simultaneous control.
c. Its server-side programming usefulness is extremely full-grown.
d. It has support for JSON licenses.

MariaDB:
MariaDB is a network created relational database management software system, written in C, C++, Bash and Perl.

Features:
a. MariaDB is comparable to MySQL, with some additional features. It can be viewed as an evolved variant of MySQL.
b. Programming in MariaDB is covered by BSD, GPL, and LGPL licenses.
c. The framework uses a rearranged and standard questioning language.
d. It supports an assortment of working frameworks and programming dialects.
e. It offers special help for PHP.

CockroachDB:
CockroachDB is a distributed SQL (newSQL) database built on a transactional and strongly-consistent key-value store. It’s heavily inspired by Google’s Spanner and has many similarities with it.

Features:
a. Distributed or replicated OLTP
b. Multi-data centre deployments
c. Multi-region deployments
d. Cloud migrations
e. Cloud-native infrastructure initiatives

Neo4j:
Neo4j is a graph database management system.

Features:
a. It is ACID (atomicity, consistency, isolation, and durability) compliant.
b. It encourages versatility.
c. Replicates information with quality and security.
d. It works with Web applications for recovering chart information.
e. It bolsters enquiry information sent out to JSON and XLS design.

CouchDB:
CouchDB has been developed by the Apache Software Foundation, and is written in Erlang language.

Features:
a. It is ACID compliant.
b. Has a distributed design with replication.
c. CouchDB gives accessibility such as parcel resilience, ensuring competency.
d. The information in the CouchDB framework is stored as ‘records".

RethinkDB:
RethinkDB is an open source database that, in contrast to customary database frameworks, stores data in the JSON (JavaScript Object Notation) group. It’s viewed as a NoSQL (Not only SQL) database, just like MongoDB, Cassandra, and CouchDB.

Features:
a. No mapping or table structure is required for putting away the data.
b. Distributed engineering helps it to scale (in groups).
c. It has:

• Consistency (similar information can be viewed by all the customers of the framework)
• AvailabilityPartition tolerance

Redis:
Redis is an open source (BSD authorised), in-memory information structure store, used as a database, reserve and message dealer. It enhances information structures. for example, strings, hashes, records, sets, arranged sets with extend enquiries, bitmaps, hyperlogs, and geospatial files.

Features:
a. In-memory data store
b. Flexible data structures
c. Simplicity and ease-of-use
d. Replication and persistence
e. High availability and scalability

SQLite:
SQLite is a C programming library. The word ‘lite’ in the name indicates that the organisation, arrangement, and basic source of the database is lightweight. Created by D. Richard Hipp on August 17, 2000.

Features:
a. SQLite programming enhances cross-stage document design.
b. It needs less programming. The whole library is under 500 KB in size.
c. It has a static composing group, which is usable in most SQL database motors.
d. SQLite utilises variable-length records.
e. The SQL explanations are compiled into virtual machine code.

Cassandra:
Cassandra comes from the stable of the Apache Software Foundation, and is a free and open source DBMS written in Java.

Features:
a. Apache Cassandra is a NoSQL database.
b. It supports replication and multi-server farm replication.
c. It is adaptable and reliable.
d. A distributed database, its conveyance plan relies on Amazon DynamoDB and information model on Google Cloud Bigtable.
e. Cassandra can run on sensitive equipment and perform quick writes to store a lot of information.

Timescale:
New technologies require new sorts of databases. One of the best open source databases for the Internet of Things is Timescale.

Features:
a. Hypertable abstraction layer
b. Automatic partitioning
c. Optimised time based constraint exclusion
d. Works across time-series and relational tables
e. Built-in flexible time bucketing