A Django template is a text document or a Python string marked-up using the Django template language. Some constructs are recognized and interpreted by the template engine. The main ones are variables and tags. A template is rendered with a context.
Django templates: Create your First Template in easy steps
The third and most significant aspect of Django’s MVT Structure is templates. In Django, a template is a .html file that is prepared in HTML, CSS, and Javascript. The Django framework efficiently manages and generates dynamically generated HTML web pages for end-user viewing. Django is mostly a backend framework, thus we use templates to offer a frontend and a layout for our website.
All static objects in a web page developed with Django hold the templates for generating the static entities, which are important to understand and run the process of Django applications. In other words, the templates are in charge of constructing the skeleton of a webpage. These templates allow you to set up an MVT-oriented architecture in Django. A Django view is used to render the templates used in a Python setup.
Need of Templates in Django
We can’t put python code in an HTML file since the code is only interpreted by the Python interpreter, not the browser. HTML is a static markup language, but Python is a dynamic programming language.
The Django template engine separates the design from the python code, allowing us to create dynamic web pages.
Rendering Django Views using Templates.
Given below are the templates to render Django views
1. Create a template folder
All template related HTML code could be placed into this folder. The template folder has to be created under the primary project folder.
2. Tag the template folder in settings.py file
The settings.py file is used for tagging these templates to their associated views. When the tagging process is accomplished it allows all the HTML contents placed inside the folder to be falling under this template section.
For implementing the Django template’s API backend the python path in the BACKEND key is used. Some among the backends which are built in Django are django.template.backends.django.DjangoTemplates and django.template.backends.jinja2.Jinja2.
The directory at which the template engine needs to locate the template related search files is placed in the DIRS directory.
Whereas the APP_DIRS is helpful in mentioning the location at which the engine has to verify the templates within the installed applications. For every subdirectory inside the applications a conventional name is provided by each defined backend.
3. Place the HTML file inside the templates folder
Code:
<!DOCTYPE html> <html lang=”en” dir=”ltr”> <head> <meta charset=”utf-8″> <title>Django App1</title> </head> <body> <h1> Hello world from HTML page <h1> </body> </html>
This is used to generate a response. This is a mandatory argument.
template name
Name of the template used for this view. This is a mandatory argument.
context
A context is a variable name and variable value mapping maintained as a dictionary. In default,this is an empty dictionary. So if the key is passed the corresponding value from the dictionary can be retrieved and rendered. This is an optional argument. If nothing is provided for the context then render a empty context.
content_type
MIME(Multipurpose Internet Mail Extensions) to be used. The default value is ‘text/html’. This is a optional argument.
status
The response code to be used. The default response code is 200.
using
This argument is used to represent the name of the template engine used for loading the template. This is a optional argument.
Example:
Code:
from django.shortcuts import render from django.http import HttpResponse def index(request_iter): return render(request_iter,’design.html’)
4. Tag the view in urls.py file
This is the process of creating a url for the view. The url mentioned here will be used for reaching the web page which is been mentioned.
Import the library from django.conf.urls import url.
from django.contrib import admin from django.conf.urls import url from Django_app1 import views urlpatterns = [ url(r’^$’,views.index,name=’index’), url(r’admin/’,admin.site.urls),]
5. Reload the server using python manage.py runserver command and verify webpage
The system message which is been placed below will be printed in the project console on loading the runserver. This message holds detailed information of when the server was started, the Django version which is been used and the http link at which the server is kickstarted.
Code:
Watching for file changes with StatReloader Performing system checks… System check identified no issues (0 silenced). June 10, 2020 – 11:23:00 Django version 3.0.7, using settings ‘filename.settings’ Starting development server at http://127.0.0.1:8000/ Quit the server with CTRL-BREAK.
Output:
Django View Rendered from Template Tag
Given below are the Django view rendered from template tag:
1. The template tags are used for injecting dynamically generated content to the Django views. This is among the key functionalities of template tag. They could flexibly inject dynamic contents into the file.
The template tag filters could use the below listed options:
All Options in Template Filters
add
addslashes
capfirst
center
cut
date
default
dictsort
divisibleby
escape
filesizeformat
first
join
last
length
linenumbers
lower
make_list
random
slice
slugify
time
timesince
title
unordered_list
upper
wordcount
2. In this example we have added the if tags and the filter tags to the template.
3. Reload the server using python manage.py runserver command and verify the webpage.
Output:
Conclusion
The use of templates is on among the biggest capabilities of Django in web development framework. These templates allow the Django setup to flexibility transfer dynamic content between the front end and the middle stream.
Who uses Django? reportedly2554 companies using Django in their tech stacks, including Pinterest, Instagram, and Udemy.
Why do companies using Django?
Django is a high-level Python web framework that enables rapid development of secure and maintainable websites. Built by experienced developers, Django takes care of much of the hassle of web development, so you can focus on writing your app without needing to reinvent the wheel.
Why many companies using django instead of flask?
Django is suitable for multiple page applications. Flask is suitable for only single-page applications. -Django-admin is the in-built bootstrapping tool of Django that allows the creation of web applications without any external input. Flask does not come with an in-built bootstrapping tool.
Instagram is a social media application for sharing photos and videos. The app is also the world’s largest deployment of the Django web framework.
Python’s practicality and simplicity make the language a top-tier choice for Instagram. But after the platform scaled, efficiency became a bigger priority. Using Django, Instagram Engineering was able to build custom tools to meet this goal.
2. National Geographic
National Geographic is a television network and popular magazine series focused on delivering educational content in subject areas like science, culture, and history.
Django eases the development of data-driven, complex websites like National Geographic’s website. Django also has its own content management system (CMS) called django CMS which the National Geographic’s Education page relies on.
3. Mozilla
Mozilla is the global nonprofit you can credit with the creation of the popular Firefox browser. Though it may seem hard to believe, Firefox is better and faster at handling some processes than even Google Chrome, mostly where load management and RAM consumption is concerned.
With Django, Firefox can tackle large amounts of traffic and API hits in a more efficient manner.
4. Spotify
Spotify is an audio streaming provider. Users listen to digital music (and sometimes podcasts) around the world through the internet.
Python is used for Spotify’s back-end services and data analysis. And Spotify uses a Django app or two to increase functionality.
5. Pinterest
Pinterest is another social media platform like Instagram. But although you can share images just the same, Pinterest’s primary concern is that users gain inspiration for topics related to fashion, home, cooking, etc.
The platform’s user-friendly interface is to blame for much of its appeal. Django’s open-source capacity means Pinterest can modify the framework for its needs.
6. Disqus
Disqus allows websites to feature commenting. Using Disqus, primarily blogs and online communities offer user profiles, social networking, and other methods of social integration to help users feel more connected.
Disqus has never been shy about deploying Django in their tech stack. In 2013, Disqus met a goal of handling 8 billion page views per month and 45,000 requests per second, thanks to the scalability that Django can provide.
7. Bitbucket
Bitbucket is a big name in the developer community. Developers use version control systems (VCS’s) to push and pull code changes to a repository online. This methodology paves the way for easy collaboration.
Bitbucket is a popular repository hosting service. Launched in 2008, Bitbucket made its big debut only two years later when Atlassian acquired the service, owing its quick turnaround time to Django’s prowess.
8. Eventbrite
Eventbrite is an event management and ticketing service. Users access Eventbrite via app or web and can find local and non-local events to attend for virtually any price, including free.
With COVID-19 entering the picture, Eventbrite has not lost sight of its utility and now users can find online events as well.
In 2010, Eventbrite made the decision to migrate to Django. They felt moving to Django would incite a more feature-rich and vibrant community.
And in the short term, Django brings about benefits such as URL routing, form building, unit tests, and more.
9. Prezi
Prezi is a website that permits users to build interactive presentations. When powerpoints are a little too square to tell the story you want, Prezi is the way to go.
Prezi actually runs on Django CMS, a content management system (CMS) written using the Django framework. Giving its user base dynamic, fully responsive designs is one of the principal reasons Prezi chose to migrate to Django.
Fantastically enough, there is an entire Prezi explaining Prezi’s use of Django over the years, created by Szilveszter Farkas, a former developer at Prezi.
These qualities of Python and Django are readily attracting businesses and organizations to adopt them. Naturally, the demand for Django Developers and Python Developers (with Django skills) remains at an all-time high.
Is Django good for future?
Django has a lot more generators than other web development languages and management tools for dependencies, different libraries, and APIs that work with it. Django has a built-in CSS framework. It is a modern tool made of Python and used on the back end of websites a lot. Django has a lot of client-side dependencies
Is there demand for Django?
In fact, Django is the secret ingredient behind many successful apps, including Instagram, Spotify, YouTube, Disqus, Bitbucket, Dropbox, Mozilla, Eventbrite, and Prezi. This is why there is a high demand for Python Django web developers in the market.
Is Django hard to learn?
But Django is also not the simplest technology to learn. It can take a long time before beginners are absolutely comfortable working with Django. However, it’s important to have a good understanding of Python before diving into Django. Learning Django will undoubtedly be more difficult.
How much Python should you know before learning Django?
This question comes to the mind of every beginner and experienced developer who wants to learn Django and build an application in it. No doubt most developers or beginner wants to learn any framework or library as soon as possible. We all want to know the minimum prerequisite that is needed to learn any framework or library. Here we are going to talk about the most popular framework Django…
It can take a long time before beginners are absolutely comfortable working with Django. It’s important to have a good understanding of Python before diving into Django. In this post, I will cover what I believe to be the most important things to understand in Python before learning Django.
If you are comfortable with Python and you’re considering going into web development, you have a few options to choose from. Django is the most popular Python web framework. But Django is also not the simplest technology to learn. It can take a long time before beginners are absolutely comfortable working with Djang
In this post, I will cover what I believe to be the most important things to understand in Python before learning Django. I will also explain where these concepts are used in Django, and why it makes sense to understand them.
Disclaimer – this post will not be teaching the actual concepts. Use it rather as a guide for what to learn. I will include links for learning resources.
These are the building blocks of not only Python, but all programming languages. It’s crucial to understand these concepts before going further. Variables, data types, conditionals, and for-loops are used constantly in programming. These are not unique to understanding Django.
Iterables
An iterable is an object that can be “iterated over”, such as in a for-loop.
In Python, the most common way of looping through data is by using a list. Lists are simply constructed like this:
names = ['joe', 'soap']
Another common way of loop through data is to use a tuple like so:
plants = ('flower', 'tree')
Django has its own objects to store data.
In Django, you will work with a Queryset. Querysets are objects that you could describe as very powerful lists of data. Not only can you loop through the queryset, but you can perform complex operations on them too – such as filtering and comparing.
It’s very important to understand that a Python list is described as an iterable. A tuple is also an iterable. And a Django queryset is also an iterable
The takeaway from this is to understand what it means to be an iterable and to “iterate over” an object, such as in a for-loop. This concept of iterating is something you will use constantly when working with Django.
Dictionaries are commonly used in Python to store key-value pairs of data. For example:
person = {
“first_name”: “Joe”,
“last_name”: “Soap”,
“age”: 25
}
When working with Django, one of the most common places you’ll work with dictionaries is when adding context to a template.
Context is a dictionary of information you’d like to have access to inside of an HTML template. Context is one of the most fundamental concepts of working with templates in Django, and so it’s crucial to understand it first as a Python object.
It is also good to understand methods on a dictionary such as .update() and .pop() .
In my experience, decorators are not used that often. But they can be very useful in solving certain problems in your code. Django makes use of decorators to provide some helpful utilities, hence it makes sense to understand them.
The syntax of using decorators is fairly simple, but what happens inside them is what you should focus on learning:
def uppercase_decorator(function):
def wrapper():
func = function()
make_uppercase = func.upper()
return make_uppercase
return wrapper
@uppercase_decorator
def print_name():
return "joe soap"
When working with Django, one of the most common places you’ll work with dictionaries is when adding context to a template.
Context is a dictionary of information you’d like to have access to inside of an HTML template. Context is one of the most fundamental concepts of working with templates in Django, and so it’s crucial to understand it first as a Python object.
It is also good to understand methods on a dictionary such as .update() and .pop() .
Classes are crucial to understand before working with Django
This is where I fell short when I started learning Django. I believed my understanding of everything else was good enough but didn’t focus on learning classes.
But most of the way you write code in Django is by using classes.
You write Models, Forms, and Views using classes. In fairness, you can write Views using functions, but I believe you’ll be missing out on a much simpler way to write them.
Even if you decide to write Views using functions, most of how Django works internally is through classes.
Classes are so important that I’m breaking up this section into the subsections of what you need to know about Classes before starting with Django.
Fundamental Concepts
The fundamentals are:
Syntax of writing a class
The Object-Oriented Programming paradigm
The self keyword
The special __init__ method
The difference between an instance and a class
Inheritance
Methods (instance methods and class methods)
Overriding methods
When inheriting from a class, you can override existing logic on that class. This is something you will do countlessly when working with classes provided by Django. For example:
class Person:
def __init__(self, name, age):
self.name = name
self.age = age
def full_name():
return f"{self.name}"
class Employee(Person):
def __init__(self, name, age, title):
self.name = name
self.age = age
self.title = title
def full_name():
return f"{self.title} {self.name}" # e.g Mr Soap
Here we are creating an Employee class that inherits from the Person class. We are overriding the full_name method to return something different.
In Django, you will override methods when working with Models, Forms and Views, so understanding what overriding does, is an important concept in OOP.
The super() function
The super() function is very important to understand when working with classes. I’ve specifically put it as its own subsection to highlight it. This is because when working with Django you will use the super() function a lot.
To understand super() you need to understand inheritance first. So make sure you’ve already gone through the previous list of concepts about classes.
As an example, when working with context in Django Views, you will call the super() function to grab the already existing context, so that you can customize it:
When working with Django you will typically import a lot of functions and classes from Django’s modules. If you are not used to importing and working with libraries and third-party packages, you might find it to be an extra layer of learning for you.
For this reason I recommend starting out with other Python libraries like pandas and numpy, so that you can get used to the idea of importing and working with packages.
This also brings up another important concept to understand, which is the difference between a library and a framework.
“When you use a library, you are in charge of the flow of the application. You are choosing when and where to call the library. When you use a framework, the framework is in charge of the flow. It provides some places for you to plug in your code, but it calls the code you plugged in as needed.”
This is very important to understand because Django is a framework, not a library. If you’re not familiar with working inside a framework, it might require a change of mindset to understand how everything fits together.
Conclusion
Django is not the easiest tool to learn. It requires a strong foundational knowledge of Python and particularly good familiarity with classes and Object-Oriented Programming.
I personally recommend spending a good amount of time becoming very familiar with Python, building lots of projects – even if they don’t have anything to do with web development. And once you feel strong about your Python skills, then diving into Django.
After complition of basic learning of python click here to learn how to install django .
Django Vs Flask : Which Python Framework to Choose?
The Python programming language comes with a wide assortment of web frameworks that can be used by web developers to build websites. This allows the web developer to choose the framework that most closely fits their task and is most suitable for the endeavor. Among many popular choices, Django and Flask are the two that are most often compared in order of popularity. Most likely, this is the result of both of them sharing some similarities and many differences. Each framework has its own unique features, so we can use it in accordance with the requirements of a particular project.
As a full-stack web framework, Django is best suited for developing large and complex web applications, while Flask is a lightweight, extensible framework that allows you to develop small web applications. With Django, you will enjoy the batteries-included approach and have access to the most comprehensive functionality.
Are you still unsure which framework to use for web development? Even though each of these web development frameworks has its own unique features, there are many factors that you should consider before choosing one for your application.
Django vs Flask : Defination and key features
What is Django?
Created by Adrian Holovaty and Simon Willison in the year 2003, Django is a python-based open-source framework to design web applications. It is a high-level web framework that is built to make the web development process faster and more efficient. Inspired by many of the old frameworks like CherryPy, Zope, Plone, etc. Django is a free source with enhanced features and better performance. Developers choose Django for it enables them to use it for the standard functionalities with a limited interference of systems, protocols, and management.
Django is also called a ‘framework for fussbudgets with deadlines’ as its framework encourages rapid development and clean, pragmatic design. The agile development process of the framework aims solely on providing quality with rapidness and efficiency. Django deals with some of the basic development functions quickly like site maps, content organization, client information, and, so many more. It just focuses on finishing the application as quickly as possible.learn more
Some of the key features of Django are as follows:
Fast: It is insanely Fast. Without any thought, the Django working process from concept to completion is extremely fast.
Versatile: Django is a versatile framework that enables developers to work on different platforms varying from content management systems like WordPress, etc, to social network sites like LinkedIn, Youtube, etc, to news sites like The New York Times, CNN, etc.
Adaptable: Django is adaptable to different formats like JSON, HTML, XML, and many more.
Scalable: It is a framework that ensures scalability ( a system that allows making changes in different layers and updations without much cost and effort i.e., every layer is independent) and maintenance (the design and code are not susceptible to duplications and, hence, the code can be reused and maintained properly)Secure: Django guarantees security with powerful authentication systems and protocols to avoid clickjacking, unauthorized access, cyberattacks, etc.
Portable: Django is a python-based framework and, therefore, portable.
Flask is also a Python-based microframework that is used for web application development. It was introduced by Armin Ronacher in the year 2011 as a trial method of joining two solutions i.e., Werkzeug (a server framework) and Jinja2 (a template library).
It was supposed to be a trial run in a zip file that ultimately originates from the positive influence of Flask.
Flask is categorized as a micro framework because it does not depend on external libraries to perform the tasks of a framework. It has its tools, technologies, and libraries to support the functionalities of web application development.
Since this framework is more independent and flexible, many developers prefer to start with Flask.
Companies using Flask Flask is used by the following giant companies:
Netflix
Airbnb
MIT
Reddit
Lyft
Zillow
Mozilla
MailGui, etc.
Key Features: Flask
Some of the features of Flask are:
Lightweight: It is a lightweight framework as it is independent of external libraries. It gives a quick start to the web development process of complex applications.
Independent: Flask gives independent or full control to the developer for creating applications. You can experiment with the architecture or the libraries of the framework.
Integrated Unit Testing: Flask’s integrated unit testing system enables faster debugging, robust development, and freedom to experiment.
Secure Cookies: Secure cookie is an attribute of an HTTP request that enables the security of channels and ensures no unauthorized person has access to the text. Flask supports the feature of secure cookies.
Compatible: Flask is compatible with the latest technologies like Machine Learning, Cloud, etc.
Flexible and Scalable: Support WSGI templates that allow flexibility and scalability for web applications.
It comes with a built-in server and debugger.
Simple and adaptable configurations
Python Django Vs Flask : Difference in Detail
After reading in detail about both python-based frameworks, Django and Flask, you must have understood that there are as many similarities as differences.
Therefore, for better judgment and deciding upon which framework is the best one, you need to look at the head-to-head comparison of the frameworks that highlight the difference between Django vs Flask.
Find below the difference between Django vs Flask
Parameter
Django
Flask
Type of Framework
Django is a full-stack web framework that enables ready to use solutions with its batteries-included approach.
Flask is a lightweight framework that gives abundant features without external libraries and minimalist features.
Working of Framework/Data Model
Django follows an object-oriented approach that enables object-relational mapping (linking databases and tables with classes)
Flask works on a modular approach that enables working through outsourced libraries and extensions.
Project Layout
Django is suitable for multiple page applications.
Flask is suitable for only single-page applications.
Bootstrapping Tool
-Django-admin is the in-built bootstrapping tool of Django that allows the creation of web applications without any external input.
Flask does not come with an in-built bootstrapping tool.
Database Support
Django supports the most popular relational database management systems like MySQL, Oracle etc.
Flask does not support the basic database management system and uses SQLAlchemy for database requirements.
Flexibility
Django is less flexible because of its in-built features and tools. Developers cannot make changes to the modules.
Flask is a micro-based framework with extensible libraries making itself a flexible framework for developers.
Template Engine
Django is inspired by the Ninja2 template but has its built-in model view template that makes the development process easier.
Flask used Ninja2 template design
Control
Developers do not have full control over the modules and functions of Django because of built-in libraries.
Flask allows developers full control over the creation of applications with no dependencies from external libraries.
Working Style
The working style of Django is Monolithic
The working style of Flask is diversified style.
Debugger
Django does not support any virtual debugging.
Flash has an in-built debugger that offers virtual debugging
Routing and Views
Django framework supports the mapping of URL to views through a request.
Flask web framework allows mapping of URL to class-based view with Werkzeug.
Structure
Django framework structure is more conventional.
Flask web framework structure is random.
HTML
Django supports dynamic HTML pages
Flask framework does not support dynamic HTML pages
Best Features
• Open-Source Great Community • Fast Development • Easy to learn • Secure
• Extensive Documentation • Lightweight • Minimal Features • Full Control over the development process • Open-Source
Usage
Django is suitable for high-end technology companies like Instagram, Udemy, Coursera, etc.
Flask is suitable for companies and projects that want experimentation with the module, and architecture of the framework like Netflix, Reddit, Airbnb, etc.
Django vs Flask: Which one is better?
You are now well aware of the concepts and differences between python-based Flask and Django. These frameworks have their individual features and characteristics that set them apart in their functionalities and usage.
Now, to choose one framework you might also need to learn about the pros and cons of both of the web frameworks. So, let us look at the primary advantages and disadvantages of Django and Flask.
Django vs Flask: Advantages And Disadvantages
Flask: Advantages And Disadvantages
Advantages
Adaptable to the latest technologies
Independent framework enables experimentation with architecture, libraries.
Suitable for small case projects
Requires small codebase size for simple functions
Ensures scalability for simplistic applications
Easy to build a quick prototype
Routing URL functions through Werkzeug makes the process easier.
Hassle-free application development and maintenance.
Database integration is easy
Extensible and easy core system.
The power of the framework lies in its minimalistic features.
Flexible and allow full control access.
Disadvantages
MVP(Minimum Viable Product) development process is slow.
Not suitable for big applications or projects.
Complex maintenance for intricate implementations or system updates.
There is no in-built admin site for maintaining models, insert, update or delete records.
Does not support a proper database system and lacks Object- Relation Mapping.
Absence of a strong community for support and growth.
Security is uncertain, with no function for user authentication or login.
Django: Advantages and Disadvantages
Advantages
The process of setting up and running the framework is easy and quick.
Suitable and easy user interface for administrative functionalities.
The built-in internationalization system enables the creation of multilingual websites.
Integrated unit testing for the web application
Support dynamic HTML pages
In-demand framework amongst top tier companies.
Easy and highly developed documentation
Supports fully-featured Administration Interface
Maximised scalability with less cost of hosting services
Highly secured framework
It is used for rate-limiting API requests from a single user.
Assist you to define models for the URLs in your application
Ensures rapid development with a strong in-built template design.
The prospects are positive and certain.
Disadvantages
Monolithic working style making things too complicated and fixed.
Prior knowledge of the framework is necessary.
Codebase size is relatively larger.
Too many functions and a high-end framework for a simple project.
Profoundly based on Django ORM
URL dispatching via controller reg-ex complicates the codebase.
Conclusion Of Django Vs Flask
Finally, we have arrived at the juncture of which one is better?
Django vs Flask: one is an open-source framework for rapid development while the latter is a light-end framework for standard functionalities. Django and Flask are types of frameworks written in the Python programming language. These python-based frameworks are considered to be one of the popular frameworks for web development, according to the Developers Survey 2018.
After reading and understanding the in-depth detail about both of the web frameworks, one must easily conclude that both have their functionalities. It means that there must be a reason why both are amongst the popular python-based frameworks in the domain of web development.
Flask renders full control and is highly suitable for small projects that necessitate experimentation.
Django is complicated and requires vast knowledge but it stands out as one of the best frameworks for building sophisticated applications.
You could begin your learning in frameworks with Flask but upskill yourself in intricate tools and development with Django. Both of them are necessary skills for any web developer. Having fundamental knowledge and understanding of python Flask and Django can put you on the map prior to other candidates while applying for a job.
Therefore, choose whatever you want but master it like a pro because they have a surging demand and are indispensable to the industry of web development.
A database is an organized collection of structured information, or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS).
Following are the databases for django
Postgres Database
PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.
PostgreSQL, also known as Postgres, is a free and open-source relational database management system emphasizing extensibility and SQL compliance. It was originally named POSTGRES, referring to its origins as a successor to the Ingres database developed at the University of California, Berkeley.
PostgreSQL is used as the primary data store or data warehouse for many web, mobile, geospatial, and analytics applications. The latest major version is PostgreSQL 12.
Is Postgres a SQL database?
PostgreSQL is a powerful, open source object-relational database system that uses and extends the SQL language combined with many features that safely store and scale the most complicated data workloads.
What is difference between SQL and PostgreSQL?
SQL server is a database management system which is mainly used for e-commerce and providing different data warehousing solutions. PostgreSQL is an advanced version of SQL which provides support to different functions of SQL like foreign keys, subqueries, triggers, and different user-defined types and functions.
Is PostgreSQL still used?
PostgreSQL, an advanced enterprise class open source relational database backed by over 30 years of community development is the backbone to many key technologies and apps we use each day.
SQLite Database
What is SQLite database used for?
SQLite is used to develop embedded software for devices like televisions, cell phones, cameras, etc. It can manage low to medium-traffic HTTP requests. SQLite can change files into smaller size archives with lesser metadata. SQLite is used as a temporary dataset to get processed with some data within an application.
SQL is Structured Query Language which is used with databases like MySQL, Oracle, Microsoft SQL Server, IBM DB2, etc.SQLite is portable database resource. It could get an extension in whatever programming language used to access that database.
What is the use of SQLite database?
SQLite Database is an open-source database provided in Android which is used to store data inside the user’s device in the form of a Text file. We can perform so many operations on this data such as adding new data, updating, reading, and deleting this data
MangoDB
What is MongoDB and why it is used?
MongoDB is an open source NoSQL database management program. NoSQL is used as an alternative to traditional relational databases. NoSQL databases are quite useful for working with large sets of distributed data. MongoDB is a tool that can manage document-oriented information, store or retrieve information.
In comparison to the SQL server, MongoDB is faster and more scalable. While the SQL server supports JOIN and Global transactions, MongoDB does not. The MS SQL server does not accommodate large amounts of data, however MongoDB does.
Is MongoDB a software or language?
MongoDB is a source-available cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. MongoDB is developed by MongoDB Inc.
What is the main advantage of MongoDB?
MongoDB is designed to make data easy to access, and rarely to require joins or transactions, but when you need to do complex querying, it’s more than up to the task. The MongoDB Query API allows you to query deep into documents, and even perform complex analytics pipelines with just a few lines of declarative code.
MySQL Database
What is MySQL database used for?
MySQL creates a database for storing and manipulating data, defining the relationship of each table. Clients can make requests by typing specific SQL statements on MySQL. The server application will respond with the requested information and it will appear on the clients’ side.
What is the major difference between MySQL and SQL? SQL is a query programming language for managing RDBMS. In contrast, MySQL is an RDBMS (Relational Database Management System) that employs SQL. So, the major difference between the two is that MySQL is software, but SQL is a database language
Is MySQL still used?
MySQL Community Edition is the most widely used free database in the industry. Also, its commercial version is used extensively in the industry.
Is MySQL easy to learn?
MySQL is a popular database platform for businesses because it is extremely easy to use. It is commonly used in combination with PHP. You hear “it’s easy to work with” a lot in relation to computer languages, but MySQL truly is simple
The MariaDB database is used for various purposes such as data warehousing, e-commerce, enterprise-level features, and logging applications. MariaDB will efficiently enable you to meet all your workload; it works in any cloud database and works at any scale – small or large. What is a database?
Is MariaDB SQL server?
MariaDB : MariaDB is an open source relational database management system (RDBMS) that is a compatible drop-in replacement for the widely used MySQL database technology
Is MariaDB better than SQL Server?
Comparison Results: MariaDB is the winner when it comes to ease of use, initial setup and price. SQL Server comes out on top when it comes to performance, scalability, and support. To learn more, read our detailed MariaDB vs. SQL Server report (Updated: September 2022).
Oracle Database is the first database designed for enterprise grid computing, the most flexible and cost effective way to manage information and applications. Enterprise grid computing creates large pools of industry-standard, modular storage and servers.
Is Oracle DB same as SQL?
Structured Query Language (SQL) is the set of statements with which all programs and users access data in an Oracle database. Application programs and Oracle tools often allow users access to the database without using SQL directly, but these applications in turn must use SQL when executing the user’s request.
Where we can use Oracle Database?
Deploy Oracle Database wherever required—in your data center, public cloud, or private cloud. This offers the flexibility between deployment in your data center when residency or latency are critical, or in the cloud when you want to take advantage of scalability and the broadest set of capabilities.
Install python if not installed in your system ( according to configuration of your system and OS)Try to download the latest version of python it’s python 3.11.0 this time.
Django can be installed easily using pip . In the command prompt, execute the following command: pip install django . This will download and install Django. After the installation has completed, you can verify your Django installation by executing django-admin –version in the command prompt.
Django is a high-level Python web framework that enables rapid development of secure and maintainable websites. Built by experienced developers, Django takes care of much of the hassle of web development, so you can focus on writing your app without needing to reinvent the wheel. It is free and open source, has a thriving and active community, great documentation, and many options for free and paid-for support.
Django is generally going to be installed in the site-packages directory of the Python directory you’re using. If you’re on an unfamiliar machine however where that is may not be immediately obvious so here’s a way to be sure.
Note- Installation of Django in Linux and Mac is similar, here I am showing it in windows for Linux and mac just open terminal in place of command prompt and go through the following commands.
pip command
The pip command looks for the package in PyPI, resolves its dependencies, and installs everything in your current Python environment to ensure that requests will work. The pip install <package> command always looks for the latest version of the package and installs it.
Install pip- Open command prompt and enter following command-
python -m pip install -U pip
Install virtual environment-
Enter following command in cmd-
pip install virtualenv
Set vertual environment-
Setting up the virtual environment will allow you to edit the dependency which generally your system wouldn’t allow.
Follow these steps to set up a virtual environment
Create a virtual environment by giving this command in cmd-
virtualenv env_site
Change directory to env_site by this command-
cd env_site
Go to Scripts directory inside env_site and activate virtual environment-
cd Scripts
activate
Install Django- Install django by giving following command-
pip install django
Return to the env_site directory-
cd ..
Start a project by following command-
django-admin startproject geeks_site
Change directory to geeks_site
cd geeks_site
Start the server- Start the server by typing following command in cmd-
python manage.py runserver
To check whether server is running or not go to web browser and enter http://127.0.0.1:8000/ as url.
Popularity of Django
Django is a fast, secure, and flexible Python framework that works hand-in-hand with data science and data analytics. According to GitHub, Django is the 2nd most starred Server Side framework after Laravel. The thing that makes Django a popular framework is its ability to strike the right balance between enterprise features and rapid application development. Moreover, the clean design of Django drags all developers. That is why Django framework development has a huge demand from business enterprises of all sizes and types.
JR Rickerson, A Python Expert, and Instructor at DevelopIntelligence, says, “For web development, my go-to framework is Django. Django is one of the oldest web frameworks in the Python community, and it can be considered by some to be bloated, but everything I need to get a new client up and running with a web application is built-in or easily available via the huge ecosystem of Django apps. I don’t need to spend any billable time on boilerplate.”
This statement tells too much about why the Django framework is a favorite tool. Python is the natively supported programming language for Django.
Django is used in many popular sites like as: Disqus, Instagram, Knight Foundation, MacArthur Foundation, Mozilla, National Geographic etc. There are more than 5k online sites based on the Django framework. ( Source ) Sites like Hot Frameworks assess the popularity of a framework by counting the number of GitHub projects and StackOverflow questions for each platform, here Django is in 6th position. Web frameworks often refer to themselves as “opinionated” or “un-opinionated” based on opinions about the right way to handle any particular task. Django is somewhat opinionated, hence delivers the in both worlds( opinionated & un-opinionated ).
