Here is how the demand for in-memory databases is increasing

Progressively, one can observe that, with the demand for the in-memory database, new providers of this technology are entering the market with features that can have an advantage over their competitors. For example, after SAP and Oracle, IBM and Microsoft have built in-memory technology into DB2 and SQL Server. 

In effect, with organizations preferring to store a large amount of data in the memory for faster computing, the demand for in-memory databases have increased.