in reply to Re: Examples or tutorials for Perl grammars?
in thread Examples or tutorials for Perl grammars?

«… I did this before...»

Any example available for free? No kidding. Best regards, Karl

BTW, I wonder why someone jumps to the conclusion to build an SQLish language. Isn’t SQL bad enough? The world mapped to index cards 🤪

«The Crux of the Biscuit is the Apostrophe»

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Re^3: Examples or tutorials for Perl grammars?
by LanX (Sage) on Jul 09, 2021 at 09:28 UTC

      Thanx LanX. Very interesting. Best regards, Karl

      «The Crux of the Biscuit is the Apostrophe»

[OT] Re^3: Examples or tutorials for Perl grammars?
by erix (Prior) on Jul 09, 2021 at 09:51 UTC

    The world mapped to index cards

    Many RDBMS have the JSON data type nowadays so that an all too obnoxious and rigid 'mapping' can be avoided while retrieval speed hardly suffers.

      Excuse my ignorance, but is there a standard for queries searching in JSON like nested structures?

      Cheers Rolf
      (addicted to the Perl Programming Language :)
      Wikisyntax for the Monastery

        The SQL Standard, in the part called SQL/JSON, describes syntax, yes. Some DBMSen have it implemented already (for quite some time). PostgreSQL has the functionality but not yet the required syntax.

        (In fact the implementation of that syntax for PostgreSQL is waiting to be committed, so I suppose it will be in version 15, next year. It works quite well, and I was able to use the ORACLE and DB2 documentation for SQL/JSON when I was trying it out and looking for examples of that standard-compliant syntax)

        PS
        There is a link to a SQL/JSON pdf (zipped) in the Bibliography part of the PostgreSQL docs:

        PostgreSQL Bibliography

        update: fixed typo's!

      Yes sure. And I added «obnoxious» to my Flashcards. Best regards, Karl

      «The Crux of the Biscuit is the Apostrophe»