History repeats itself endlessly in the database world. Late last century Oracle felt urgency to compete with the new hotness back then, object databases. The

History repeats itself endlessly in the database world. Late last century Oracle felt urgency to compete with the new hotness back then, object databases. The guys in charge of the Oracle database itself pushed back, not too much was done, and in the end those competitors all flamed and died. Object databases gave way to graph databases. They broke through a little but RDBMS continued to rule. Then came the NoSQL movement. RDBMS vendors ended up adding json columns and the pure NoSQL vendors flamed and died (excepting Mongo DB which is web scale (https://www.youtube.com/watch?v=b2F-DItXtZs https://www.youtube.com/watch?v=b2F-DItXtZs)). Thus it will continue forever.