do you mean single database? it'd be quite hard if not impossible to make applications using a single table (no relations). reddit did it though, they have a huge table of "things" iirc.

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mburns 14 hours ago | parent [-]

That is a common misconception.

> Next, we've got more than just two tables. The quote/paraphrase doesn't make it clear, but we've got two tables per thing. That means Accounts have an "account_thing" and an "account_data" table, Subreddits have a "subreddit_thing" and "subreddit_data" table, etc.

https://www.reddit.com/r/programming/comments/z9sm8/comment/...

	▲	rplnt 12 hours ago \| parent [-]
		And the important lesson from that the k/v-like aspect of it. That the "schema" is horizontal (is that a thing?) and not column-based. But I actually only read it on their blog IIRC and never even got the full details - that there's still a third ID column. Thanks for the link.