What is a Database?

The database “explain” is a keyword that gives information about the statistics and execution plan of the given query. Explain results describe what processes take place, and in which order, during the execution of a query. This helps in analyzing the query performance and optimizing the query if needed.

A database is defined as an organized structure where information of different types can be stored. Databases make data storage and retrieval faster and more efficient. Modern databases like NoSQL databases can do much more than just store data. Some salient features of a database include:

• Security, integrity, and privacy.
• Persistent storage.
• Minimal duplication or redundancy.
• Efficient management of data.
• Data independence.

There are many ways to create a MongoDB database. You can use the MongoDB shell, Compass GUI or MongoDB Atlas UI to create a new database.

There are many types of databases like non-relational, document, relational, and key-value. View the complete list of types of databases.