Passion of IT

Monthly archives for August, 2014

What is electric energy?

Electric energy is made of a movement of any electrons from the conductor with more potential energy to the conductor with less potential energy that are both connected. When you rub two amber bar with fur and put one of them near the other. You can see one bar reject the other. When you rub a glass bar with silk and a amber bar with fur  you [...]

Scripting languages: Python

There are a lot of scripting languages, the following are the most important: Javascript: it allows to perform the interaction with user of html page, JQuery is an evolution of javascript and is made of javascript SQL: script to interact with DB: DDL (data definition language) to modify the structure of the table, DML (data manipulation lang [...]

NOSQL Mongodb Vs MySQL

The better way to work with a SQL database and a programming language like java is by using a ORM (Object-Relational Mapping) layer such as hibernate or JPA. An ORM layer basically provides an object oriented interface to a relational database. That means that instead of writing a query to insert or update a record, you assign some properties [...]

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August 2014
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