Railroad diagrams for SQL 2003 and SQL 2016
On github at https://github.com/ronsavage/SQL you will find a repo of SQL stuff created by Jonathan Leffler.
I recently added some files for SQL 2003 and SQL 2016, created by Domingo Alvarez Duarte.
Specifically, look for:
I'd suggest downloading the *.xhtml files and viewing them locally, rather than hammering the on-line convertor mentioned in the readme files, which accepts *.ebnf files and displays these railroad diagrams.
And that begs the question: Is there any Perl code which converts a grammar into a railroad diagram?