I have used MongoDB, MySQL, and Oracle. MongoDB is entirely different. It's a NoSQL platform database, so it's totally different. It is a little bit hard to work with. The way it is organized and structured is different. But between Microsoft Azure MySQL and Oracle, they are pretty similar. * Cost: Microsoft is not a preferred platform. Their licensing is very complex and expensive. Oracle is much better. * AI: In terms of data analytics and AI, Microsoft is better. Certain complex transformations are easier to do in MSSQL. So, if you have to analyze data from a lot of different data sources, it becomes much easier. However, the usage of the particular product depends on the project. Personally, I would like to work on MySQL. But in certain cases where the application scale is very large, and custom models from certain regions of the globe prefer Microsoft, then we have to go with MSSQL. But technically, there is not much difference.