In ambito Open source vi sono innumerevoli licenze disponibili. Quali sono le loro differenze salienti? Come orientarsi? In questo breve articolo diamo una serie di indicazioni e spunti di riflessione.

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Pandoc is an universal document converter to convert Markdown, Org-Mode, Html, Word documents from one markup format into another  After using different tools, (including GNU info and SGML). I find out pandoc vert handy.

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Oracle SQL Developer is full of nice feature, damned by a overwhelming options pane, like the one I will describe to you right now.

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Oracle SQL Developer is full of nice feature, damned by a overwhelming options pane, like the one I will describe to you right now.

Even if  Oracle databases (<12) does not support auto increment, you can easily ask to your sql data modeler to generate for you a sequence and a trigger in a automatic way.

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AngularJS is indeed a good framework, but if you lose some grip on it (i.e. you go in vacation for 2 weeks), it is very complex to re-grasp.

Also I have seen junior JavaScript developer confused my $scope use.

JavaScript on client side has damned destiny: it is too easy to develop a framework from scratch: so roll you dice, cross your finger and find plenty of AngularJS alternatives

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Nel 2011,  per studiare node js creai un progetto chiamato OrgModeParser.

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On some environment, on some customers, Oracle connections are drop after some idle time (i.e. 2 minutes).

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In Excel you can easily fill in a column with a list of values. Some times also in Emacs you my need to write down a bunch of similar code. The dotimes function with the “elsp eval” M-x : (Esc + : on windooze) will solve your trouble easily. Try out this code on scratch buffer:

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Sometimes you need to remove nasty duplicate on a table, based on a subset of the column. On every big database there is something called “rowid” which can be used to indentify a column in a unique way. On PostgreSQL is called ctid, as we shall see:

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Arduino is a great hardware for a lot of reason: easy to use, difficulto to break, it is a very solid 5-Volt board.

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