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  • Emacs Rectangles

    calendar Jun 8, 2013 路 1 min read
     en  路 emacs
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    Did you know? Emacs supports killing rectangles of text!


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  • How I Structure My Flask Applications

    calendar Jun 27, 2013 路 1 min read
     en knowledgebase  路 python
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    How I Structure My Flask Applications

    How I Structure My Flask Applications Flask has been my preferred web framework as of late. I think it has a great core feature set and Armin, the main author, has done well to keep its API minimal and easy to digest even for developers that are relatively new to Python. However, given that it is a rather minimal framework, it can be often difficult to decide on how to structure an application after it reaches a certain level of complexity. It tends to be a common question that comes up in the #pocoo IRC channel.In this article I intend to share how I structure Flask applications. To help support this article Ive written a very basic application that Ive arbitrarily named Overholt. If you plan on following along I recommend having the source code open in your browser or a code editor.


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  • Oracle Invalid number ORA-01722

    calendar Jul 15, 2013 路 1 min read
     en knowledgebase sql  路 bad bug oracle sql
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    Oracle Invalid number ORA-01722

    I stumbled upon a very brain-f**k error on Oracle 10g on these days.

    Context: the following query [sql]SELECT * FROM (
    SELECT TO_NUMBER(CUSTOMER_ID) AS SNDG FROM BAD_CODES_TABLE WHERE
    AND I_LIKE=UPPER(‘STATIC_CONDITION’) AND CUSTOMER_ID NOT LIKE ‘%P%’ ) S WHERE TO_NUMBER(S.SNDG) >2000[/sql] could trigger a Invalid number if CUSTOMER_ID column contains invalid numbers.

    Why?

    Well鈥f you ask to “explain plan”, you will get something like

    • a table full scan
      • Filter Predicates AND
        • I_LIKE=UPPER('STATIC_CONDITION')
        • TO_NUMBER(S.SNDG) >2000
        • CUSTOMER_ID NOT LIKE '%P%'

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  • 2013 Spotify Daitan Mix

    calendar Aug 15, 2013 路 1 min read
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    spotify 聽

    http://open.spotify.com/user/1169393101/playlist/6GjrQ0EjyucEZkXaIPRH5A And yes I love POP…:)


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  • Emacs Tips

    calendar Sep 1, 2013 路 1 min read
     en knowledgebase software  路 emacs
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    Emacs Tips

    Userful Commands:

    1. keep-lines
    2. sort-lines
    For more similar options, see this "working with lines"

    For playing with rectangles of text, see this tip


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  • New Theme Juggling

    calendar May 8, 2014 路 1 min read
     en site  路 gioorgi-com
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    After some year, we decided a new theme shake up..


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  • Bash secret powers

    calendar May 14, 2014 路 3 min read
     en  路 bash file python scripting unix
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    Bash scripting has evolved a lot in the last ten years.

    I get used to relay on bash for all normal “data domination” tasks (like file system refactorings, database extraction and reporting and so on) and switching to python/ruby/perl when the complexity gets bigger. I didn’t imagine bash is even more powerful :) This article by Robert Muth so you new nice tricks: I聽 add here some other like mapfile and stress the most important one.

    Update 2016 Last but not least,if you do now know about bash history, this link will teach you a huge set of tricks Updated 2019 Bash Bible will further extend the topic.


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  • Spring Testing Survival guide

    calendar Jun 26, 2014 路 2 min read
     en featured software  路 java relax spring
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    Spring Testing Survival guide

    If you have an application with thousand of beans, you must do unit testing but…Spring testing is boring, belive me. A very complex Spring application usually have a lot of dependency: I had to manage over 3000 beans definitions in a production project right now. Sometimes you want only to test a bit of it, and setting up a complete Spring Context will drive you crazy. To avoid losing mind, my suggestion is to …cheat. Let’see how.


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  • Erlang Power Links

    calendar Jul 11, 2014 路 1 min read
     en erlang  路 erlang relax
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    Ready to study the Erlang?

    Take a look to聽http://howistart.org/posts/erlang/1聽for understanding how erlang releases works (and how to deal with them).


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  • ErZauker Revenge!

    calendar Jul 15, 2014 路 1 min read
     en erlang featured knowledgebase software  路 er-zauker erlang redis
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    ErZauker Revenge!

    After a bunch of time, I take back my Erlang Hammer from the sand of聽time.


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Giovanni Giorgi

Master Solution Architect, father and free spirit.
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    Last updated:2025-05-25 02:00
    Giovanni Giorgi

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