Introduction:

→ DBMS is a Database Management system that is used to organize data effectively by companies on a daily basis.

→ Generally, every company needs the DBMS as it allows users to record or organize data, and retrieve data. 

→ RDBMS stores the data in the form of tables and supports multiple data.

→ So, DBMS stores data in the form of files, stored in small quantities, supports only a single user, there will be individual access to data elements Whereas, whereas RDBMS stores it in the form of tables, stored in large amounts, Multiple data elements are accessible together.

→ Relational Database Management System which stores and manages the data in table format as discussed, with each piece of data, it is organized into rows and columns. 

→ Relational Databases are Object Oriented and Document databases.

→ Uses ACID set properties to ensure transactions are proper. (Atomicity, Consistency, Isolation, and Durability).

Best 10 Relational Database Management Systems (RDBMS):

Some best Relational Database Management Systems are:

1. The Oracle
2. MS SQL Server
3. PostgreSQL
4. SQLite
5. MySQL
6. Firebird
7. Cubrid
8. MariaDB
9. Db2 Express-C
10. Sequel Pro

Now let us discuss more each of them,

The Oracle:

• Generally, the Oracle database is called Relational Database Management, which supports multiple types of workloads and can manage multiple types of data.
• The Oracle RDBMS makes data faster and uses less space.
• Oracle Database is free to develop, deploy, and distribute and it is fast and simple to administer.
• Some features are Data Guard, Data Mining, and Advanced Security Option.

MS SQL Server:

• MS indicates Microsoft, SQL indicates Structured Query Languages and MS SQL is a database that supports Structured data, Spatial Data, and Semi-Structured data in multi-model databases.
• MS SQL Server is a free Relational Database Management System.
• MS SQL Server, which supports Business intelligence, Analytics applications in corporate IT environments.
• We had SQL Server editions as well which can be in four editions.
• Two are available for free; those are full-featured Developer Edition for use in database development and testing and the other one is an Express edition which is used in small DBS, and can store up to 10 GB.
• Other editions are Web Version and Standard Version. 
• Some Security features are also available here in MS SQL Server.

PostgreSQL

• PostgreSQL is the initial name of DB and is an open-source relational database management system (RDBMS).
• PostgreSQL is also called Postgres.
• PostgreSQL follows ACID properties as it features transactions, ACID properties are Atomicity, Consistency, Isolation, and Durability.
• PostgreSQL can automatically update procedures, views, triggers, and keys.
• PostgreSQL is a DB that is written in C and used by companies that have large amounts of data.
• PostgreSQL is mainly used in gaming apps and domain registration.

SQLite

• SQLite is also a relational database management system that can be written in C Programming Language.
• Uses of SQLite are Application File Format, Website Database, and Database For the IoT.
• SQLite mostly follows and uses  PostgreSQL syntax as a reference platform.
• SQLite uses automated regression testing prior to each release.
• SQLite3 is a Python SQL library that can be utilized to connect and interact with SQLite databases.

MySQL

• MySQL is also a Relational Database Management System and open source.
• SQL stands as Structured Query Language.
• MySQL has stand-alone clients which allow users to interact directly with MySQL DB using SQL.
• MySQL is used by many famous websites like Facebook, Twitter, and YouTube.
• MySQL can be written using C and C++ Languages and SQL parser is written in yacc.
• MySQL is highly available software.

Firebird

• Firebird is a free SQL Relational Database Management System and also an open-source database that can be used in Mac, Linux, and Windows.
• This type of database can be used for web applications.
• Firebird provides high and excellent performance and support for stored procedures and triggers.
• Firebird has some features like powerful, friendly, monitoring, Secure, SQL Compliance, and User-defined Functions.

Cubrid

• Cubrid is an Open Source and free database management system which provides built-in enterprise-grade features.
• Cubrid has some features like high performance, Data Sharing, Object Oriented Database elements, and A native middleware broker.
• Cubrid is available freely and it is an Open Source Software.
• Cubrid provides those features without any limitations and also helps to build a custom database solution.

MariaDB

• MariaDB is a Relational Database Management System and powerful database server.
• MariaDB is a free and Open Source Software.
• MariaDB is used to maintain high compatibility with MySQL and MySQL Server can be replaced with this without requiring any code changes.
• MariaDB has some features like MariaDB and its versions like 10.2.8, 10.1.21, 10.2.1 Alpha, Connector Java 2.0.2

Db2 Express-C

• Db2 Express-C is an edition of Db2 database software that provides some core features.
• Those core features are more scalable, and compatible with SQL which reduces risk and also cost.
• This type of Relational Database Management System has a memory limit of 4GB but without any limits on the size of the database.
• Db2 Express is a Relational Database Management System that is available free of cost.

Sequel Pro

• Sequel Pro is a Relational Database Management System that is very fast and easy to use.
• Can be used in Mac database management applications that work with MySQL databases.
• Sequel Pro, the Relational Database Management System is also open Source.
• Sequel Pro has some features like Structure view for editing fields, and Content View for giving direct editing access to all rows in a table.
• Sequel Pro is available for free.

Conclusion:

1. Firstly, We discussed Database Management Systems, and Relational Database Management Systems and discussed their differences. if you want to learn more about DBMS, there are various resources available out there such as oracle, scaler, Wikipedia, etc. 
2. DBMS stores information or data in the form of files whereas RDBMS stores in the form of tables so that it can handle large amounts of data.
3. Learned some more about Relational Database Management Systems. 
4. Then we know the best and top 10 Relational Database Management Systems.
5. We learned about each of the Relational Database Management Systems in brief.

Hope you Liked the things learned in this Blog :)