Document Databases, Explained

NoSQL databases form the backbone of most of our day-to-day internet usage.

How does a Document Database Work?

Ostensibly the idea behind document databases is that you can store any sort of information in a document. That means you can mix and match whatever sort of data you want without really having to worry about the database not being able to parse it. Of course, in practice, most document databases still tend to use some form of schema with a file format and some kind of predetermined structure.

Compared to an SQL database which is both tubular and relational, document store doesn’t have the same foibles and restrictions that SQL does.

#database #document databases

What is GEEK

Buddha Community

Ruth Nabimanya

1620633584

System Databases in SQL Server

Introduction

In SSMS, we many of may noticed System Databases under the Database Folder. But how many of us knows its purpose?. In this article lets discuss about the System Databases in SQL Server.

System Database

Fig. 1 System Databases

There are five system databases, these databases are created while installing SQL Server.

Master
Model
MSDB
Tempdb
Resource

Master

This database contains all the System level Information in SQL Server. The Information in form of Meta data.
Because of this master database, we are able to access the SQL Server (On premise SQL Server)

Model

This database is used as a template for new databases.
Whenever a new database is created, initially a copy of model database is what created as new database.

MSDB

This database is where a service called SQL Server Agent stores its data.
SQL server Agent is in charge of automation, which includes entities such as jobs, schedules, and alerts.

TempDB

The Tempdb is where SQL Server stores temporary data such as work tables, sort space, row versioning information and etc.
User can create their own version of temporary tables and those are stored in Tempdb.
But this database is destroyed and recreated every time when we restart the instance of SQL Server.

Resource

The resource database is a hidden, read only database that holds the definitions of all system objects.
When we query system object in a database, they appear to reside in the sys schema of the local database, but in actually their definitions reside in the resource db.

#sql server #master system database #model system database #msdb system database #sql server system databases #ssms #system database #system databases in sql server #tempdb system database

Django Packages

1640257440

Django-allauth: A simple Boilerplate to Setup Authentication

Django-Authentication

A simple Boilerplate to Setup Authentication using Django-allauth, with a custom template for login and registration using django-crispy-forms.

Getting Started

Prerequisites

Python 3.8.6 or higher

Project setup

# clone the repo
$ git clone https://github.com/yezz123/Django-Authentication

# move to the project folder
$ cd Django-Authentication

Creating virtual environment

Create a virtual environment for this project:

# creating pipenv environment for python 3
$ virtualenv venv

# activating the pipenv environment
$ cd venv/bin #windows environment you activate from Scripts folder

# if you have multiple python 3 versions installed then
$ source ./activate

Configured Enviromment

Environment variables

SECRET_KEY = #random string
DEBUG = #True or False
ALLOWED_HOSTS = #localhost
DATABASE_NAME = #database name (You can just use the default if you want to use SQLite)
DATABASE_USER = #database user for postgres
DATABASE_PASSWORD = #database password for postgres
DATABASE_HOST = #database host for postgres
DATABASE_PORT = #database port for postgres
ACCOUNT_EMAIL_VERIFICATION = #mandatory or optional
EMAIL_BACKEND = #email backend
EMAIL_HOST = #email host
EMAIL_HOST_PASSWORD = #email host password
EMAIL_USE_TLS = # if your email use tls
EMAIL_PORT = #email port

change all the environment variables in the .env.sample and don't forget to rename it to .env.

Run the project

After Setup the environment, you can run the project using the Makefile provided in the project folder.

help:
 @echo "Targets:"
 @echo "    make install" #install requirements
 @echo "    make makemigrations" #prepare migrations
 @echo "    make migrations" #migrate database
 @echo "    make createsuperuser" #create superuser
 @echo "    make run_server" #run the server
 @echo "    make lint" #lint the code using black
 @echo "    make test" #run the tests using Pytest

Preconfigured Packages

Includes preconfigured packages to kick start Django-Authentication by just setting appropriate configuration.

Package	Usage
django-allauth	Integrated set of Django applications addressing authentication, registration, account management as well as 3rd party (social) account authentication.
django-crispy-forms	django-crispy-forms provides you with a `crispy` filter and `{% crispy %}` tag that will let you control the rendering behavior of your Django forms in a very elegant and DRY way.

Contributing

Django-Authentication is a simple project, so you can contribute to it by just adding your code to the project to improve it.
If you have any questions, please feel free to open an issue or create a pull request.

Download Details:
Author: yezz123
Source Code: https://github.com/yezz123/Django-Authentication
License: MIT License

#django #python

Ruth Nabimanya

1620671040

Document Databases vs Relational Databases (Podcast Transcript)

Javascript developers rejoice! Amy Tom talks to Eric Bishard and Arun Vijayaraghavan about the differences between a Document Database and a Relational Database. Eric and Arun explain JSON Document Databases and also discuss NodeJS SDKs, ODMs vs ORMs, and more. Eric is the Developer Advocate and Arun is a Product Manager; both work at Couchbase.

In this episode, Amy chats to Eric and Arun about:

The differences between a Document Database and a Relational Database (06:56)The differences between an ODM and an ORM (18:45)Learning Nickel Querying through Ottoman ODM (26:58)

Follow Arun Vijayaraghavan and Eric Bishard:

Follow Arun Vijayaraghavan on GitHub
Connect with Arun Vijayaraghavan on LinkedIn
Follow Eric Bishard on Twitter
Follow Eric Bishard on GitHub
Follow Eric Bishard on Dev.to

Read more on Hacker Noon:

Eric Bishard’s Introduction to Ottoman on Hacker Noon

Shownotes:

#hackernoon-podcast #podcast #tech-podcasts #json #database #document-database #javascript #database-administration

iOS App Dev

1625133780

SingleStore: The One Stop Shop For Everything Data

SingleStore works toward helping businesses embrace digital innovation by operationalising “all data through one platform for all the moments that matter”

The pandemic has brought a period of transformation across businesses globally, pushing data and analytics to the forefront of decision making. Starting from enabling advanced data-driven operations to creating intelligent workflows, enterprise leaders have been looking to transform every part of their organisation.

SingleStore is one of the leading companies in the world, offering a unified database to facilitate fast analytics for organisations looking to embrace diverse data and accelerate their innovations. It provides an SQL platform to help companies aggregate, manage, and use the vast trove of data distributed across silos in multiple clouds and on-premise environments.

**Your expertise needed! **Fill up our quick Survey

#featured #data analytics #data warehouse augmentation #database #database management #fast analytics #memsql #modern database #modernising data platforms #one stop shop for data #singlestore #singlestore data analytics #singlestore database #singlestore one stop shop for data #singlestore unified database #sql #sql database

Grace Lesch

1621243602