Programming languages

Simple method to add historic feature to SQLite

Abstract: Make a database which can be store historic modification is often considered a “secondary” activity, but bad design leads to databases that are difficult to optimize and often not very understandable. In this article we illustrate a simple method that respects the dictates of relational theory & is easy to understand. As a plus …

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Semplice metodo per storicizzare i dati su database

Abstract: Storicizzare i dati spesso è un attività considerata “secondaria”, ma un cattivo design porta a base dati difficili da ottimizzare e spesso poco comprensibili. In questo articolo illustriamo un semplice metodo che rispetta i dettami della teoria relazionale, è facile da capire ed è attivamente usato in produzione. Autori: Ernesto Ghetti (idea), Giovanni Giorgi …

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The project has been renamed into “runif”. This page left only for Google Search happiness. Pybash is a python library to make python script as easy as in Bourne Again Shell (Bash). Bash scripting is very easy to setup. So we end up using it all the time for simple procedural script. Sometimes is it …

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Avoid Kafka if unsure (think twice series)

Some co-workers started using Apache Kafka con a bunch of our Customers. Apache Kafka is a community distributed event streaming platform capable of handling trillions of events a day. Initially conceived as a messaging queue, Kafka is based on an abstraction of a distributed commit log[*]. To get this goal, Apache Kafka needs a complex …

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Rust Programming Language

I have done a quick peek of the Rust Programming language: it is very popular on Internet, it rivals with Go on the popularity score. Anyway, I find it too much “Haskell-like”, with heavy rules and concept.  


  GraalVM is a universal virtual machine for running applications written in JavaScript, Python, Ruby, R, JVM-based languages like Java, Scala, Kotli n, Clojure, and LLVM-based languages such as C and C++.GraalVM removes the isolation between programming languages and enables interoperability in a shared runtime. It can run either standalone or in the context of …

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WebAssembly (often shortened to Wasm) is a standard that defines a binary format and a corresponding assembly-like text format for executables used by web pages. [….] WebAssembly code is intended to be run on a portable abstract structured stack machine,[27] which is designed to be faster to parse than JavaScript, as well as faster to execute,[21] and to enable very compact code representation.In …

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SQL: One of the most valuable skills – Craig Kerstiens

I admit it. I suffered from an “algebra narcoleptic syndrome” during my relational database lessons at University (1996 circa). Ok it is a fake. But it seems so real on these days. I was unable to avoid sleeping. I learned to love SQL after some years and now I think SQL is the most powerful, …

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IoT Async

Qualche mese fa avevo sviluppato una applicazione IoT per misurare la temperatura e spedire i dati ad una coda mqtt. Poi c’era uns server che collezionava i dati. Totale: tre server, con tre punti di fallimento ma architettura molto “cool” In effetti però la potenza dei moderni chip embedded è tale che è possibile implementare …

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