So in this today article, i will talk about database, SQL, DBMS, RDBMS(SQL Database engine) and how works SQL Database Engines….(as simple as possible).

I want to explain firstly, what is a data and what is a database :

Data is simply raw informations about something as age, nationality, that can be also statistics… A database is where you will store all these informations in order to save them and retrieve them when you want. …

Recursion is basically a simple loop but instead of using loops as *while* or *for* the function will call himself indefinitely.

The function will call himself indefinitely if you don’t put a condition to stop the recursion at a specific times.

To image, i will take a really basic example for you to understand more easily, so i will take a number 5 and i will increase his value at each time the function call himself and put a condition to stop the recursion when number is equal to 0, we will get at the end the sum (5 +…

In python almost everything is an object, today in this article i’ll talk about the different data type, how know the type and get the id of a data, we’ll also see immutable and mutable object, how python treat mutable/immutable object (assignment, aliasing..), how argument of function are treated and a bonus.

• First, the data type in python are list, dictionary, tuple, string, int, float…all of these are object.

This article will cover many things about object oriented in python, we will at first see what means “Object oriented programming”, what is a class, what is an attribute (class attribute, instance attribute..), what is a method(reserved method..), what is an instance, differences with class attributes and instance attributes, how to create a class with attributes, methods…

So to start, what means “Object oriented programming” ?

Object oriented programming (OOP) is a paradigm in programmation with the conception of everything is an object, these objects contains data (attributes) and code (methods). The idea behind the concept of object is that…

First of all, it’s better to understand why we need to use library in C (Linux)

The primary reason of it, is, using library will help you a lot, you will not have to re-write them in your file and make more and more doublons, with library you will just have to call functions you need in your program.

So now we know why use library, why use a dynamic library instead of a static one?

There is two ways of process with library, the linker will connect all the function.. at the last step of compilation (linker) needed to…

So today, in this article i will explain how are stored integers in memory, how the computer deals with negative and positive number using one complement and two’s complement.

Before to explain in details, what is an integer ? An integer is a positive/negative number, in the programming language C integers (signed) are stored in 4 bytes (32 bits), 1 bytes is 8 bits, with a max value : 2,147,483,647.

As you well know, computer are all about 0 and 1, so the base we will deal with will be base 2.

You might have multiple function that you created in the past and you think it’ll good to re-use them, but to do this you might need to re-write them in your file or use other way but not really relevant. So Today in this article i will show you, what is a static libraries and why use them, how to create one and how to use them, but it exists also an another type of library called dynamic library but i’ll not cover this subject today, only the static library.

So what is a static library and why use them…

The september 7th 2020, i entered at Holberton School with his virtual campus exclusively in France. After passed multiple technicals tests in August to test my motivation, knowledge..I have been selected to be apart of the first cohort in France.

Holberton works as a peer to peer learning model, his cursus is a 2 years cursus with the first year for the foundation of programmation(devOps, reverse engineering, algorithms, softs skills, low level ©, high level (python) and more) and the second year is for specialization (IA, Machine Learning, Full-Stack..). …