I suspect the subject of this post triggers the following questions:
1. Don't you mean the fall/death of Relational Databases?
2. Does anyone use these anymore?
3. What are these?
Relational Database Management Systems (RDBMS) are alive and kicking as expressed eloquently in this excerpt from a book titled "Funding A Revolution":

Large-scale computer applications require rapid access to large amounts of data. A computerized checkout system in a supermarket must track the entire product line of the market. Airline reservation systems are used at many locations simultaneously to place passengers on numerous flights on different dates. Library computers store millions of entries and access citations from hundreds of publications. Transaction processing systems in banks and brokerage houses keep the accounts that generate international flows of capital. World Wide Web search engines scan thousands of Web pages to produce quantitative responses to queries almost instantly. Thousands of small businesses and organizations use databases to track everything from inventory and personnel to DNA sequences and pottery shards from archaeological digs.

Thus, databases not only represent significant infrastructure for computer applications, but they also process the transactions and exchanges that drive the U.S. economy.

My only addition to the excerpt above is that the impact of databases extends beyond the U.S. economy. We are talking about the global economy. And this will be so for all of time!

I came across this page while enriching the links in one of my earlier "history" related posts about Relational Database Technology pioneers. During this effort I also stumbled across another historic document titled: "1995 SQL Reunion".