“There is no known entity in all of computer science which is faster than a flat file structure, especially once it’s been cached in RAM [and, better yet, cached at local ISP caching infrastructures throughout the nation].”
Depends on the volume, flat files kind of become a bear once the amount of information reaches a certain size.
If you, for example, want to look up all post that I have ever put up in a flat file system, have fun. people dont often consider how relation systems enhance lager sites.
If you setup a RDB correctly (indexed correctly, optomized) it will on large load systems smoke flat files. And given the complex querey uses that many on FR have the difference would only be more pronounced..
That's just utter and complete nonsense.
RDBs max out at thousands of transactions per second.
Flat file structures, on gigabit ethernet, max out at MILLIONS of transactions per second.