Top most popular databases in the world with details

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What is a database with an example?

A database is a structured collection of data stored and accessed electronically. An example of a database is a customer database that stores customer information, such as names, addresses, and phone numbers. 

This information can be accessed and queried by various applications or users to retrieve specific data or generate reports.

 Another example of a database is a product database that stores information about products, such as their names, descriptions, prices, and inventory levels. This database can be used by an e-commerce website to display product information and allow customers to purchase items online.

 Many databases are in use today, and their popularity can vary depending on the specific industry or context. Here are some of the most popular databases that are widely used:

MySQL: MySQL is a free and open-source relational database management system. It is a popular choice for web-based applications and is used by many websites and platforms, including Facebook, Twitter, and WordPress.

Oracle Database: Oracle is a commercial database management system produced and marketed by Oracle Corporation. It is a powerful and highly configurable system that is well-suited for enterprise applications and large-scale data processing.

Microsoft SQL Server: Microsoft SQL Server is a commercial database management system developed by Microsoft. It is commonly used for storing and managing data for business applications and is often used in conjunction with other Microsoft products such as SharePoint and Dynamics CRM.

PostgreSQL: PostgreSQL is a free and open-source object-relational database management system. It is known for its stability, data integrity, and support for advanced data types and indexing.

MongoDB: MongoDB is a free and open-source NoSQL database management system that uses a document-oriented model for storing data. It is popular for its flexibility and scalability and is often used for real-time analytics and handling large amounts of unstructured data.

IBM Db2 is a database management system used to store, retrieve, and manipulate data in a database. It is designed to support both transactional and analytical workloads, and can be deployed on premises, in a private cloud, or in a public cloud. Db2 supports a wide range of programming languages and application development frameworks, and offers features such as in-memory technology, real-time analytics, and data federation. It is commonly used in enterprise-level systems to store and manage large amounts of data. 

Note: These are just a few examples of the many databases that are in use today. It's worth noting that the most popular database can vary depending on an organization's specific needs or application.