I’ve heard way less people throwing SQL under the bus than I did back in the high-hype NoSQL days, but this article by Justin Etheredge does a good job of laying out some of the advantages and disadvantages of the RDBMS side of the fence:

The next time you hear someone describe relational databases as yesterday’s technology, or the next time you see someone assume a relational database can’t handle the needs of their unproven MVP, stop and ask them how they are going to account for the tradeoffs they’re making. Make sure they understand they aren’t skipping a dead dinosaur, they’re taking a pass on the thousands of human-years of effort that have made relational databases the sharks of the data industry.