Will there be missing data if 10000 users trying to save data to a database at the same time?

I'm currently learning to develop code for server side/backend. I use express js as the framework. Then came a time when I had to deal with database. I chose mongoDB as the database. After I learned some mongoDB API(using mongoDB npm package), then this question came to my mind. Will there be missing data if 10000 or more users trying to save data to a database(mongoDB) at the same time? If there will be missing data, how to handle it?

Submitted June 14, 2019 at 02:15PM by bajirut