> The only reason to ever use a non-relational db is for scalability and performance reasons.
And, most importantly, lack of market availability. Nobody is going to sell you a relational database nowadays, and rolling your own is... daring. Postgres was the last serious kick at a relational database, but even it eventually gave into becoming tablational when it abandoned QUEL and adopted SQL.
But tablational databases are arguably better for most use-cases, not to mention easier to understand for those who don't come from a math background. There is good reason tablational databases are the default choice.
And, most importantly, lack of market availability. Nobody is going to sell you a relational database nowadays, and rolling your own is... daring. Postgres was the last serious kick at a relational database, but even it eventually gave into becoming tablational when it abandoned QUEL and adopted SQL.
But tablational databases are arguably better for most use-cases, not to mention easier to understand for those who don't come from a math background. There is good reason tablational databases are the default choice.