Why and Which Database in Machine Learning, MySQL or MongoDB

Before directly jumping into which database to use in Machine Learning, it is very important to know and understand the uses of different types of databases. In Machine Learning, we can use any of the databases either SQL-based or NoSQL-based. But then also, there are various reasons because of which various NoSQL databases are extensively used in the industry. Some of the reasons Why NoSQL databases are chosen over MySQL in Machine Learning, Computer Vision and, Natural Language Processing for large-scale projects? SQL databases can store a large amount of data, but only in one machine that is the biggest flaw in SQL databases.