Indexing in Database is a wide topic. Database indexing plays a important role in your query result performance. But like everything this too has a trade off. I know and assumed that you already worked with `Indexing` and you indexed your few field of your database table, But in this post I will explain a bit tho I'm not a good writer will try to finish within short. What is Indexing, How it works etc. click and let's go
Those days are gone when people didn't expect information for momentary access to data. Nowadays expectation everywhere is real-time action and result. Something is happened? not 1 day ago, not even 1 min ago but `just now`. Being notified constantly on any change of data points a bit critical from many application nowadays. So the upcoming `MongoDB3.6` introduces a new `$changeStream` aggregation pipeline operator.