Technologies

Aveek Das
Exploring the Data

Learn NoSQL in Azure: Getting started with DocumentDB SQL API

July 7, 2021 by

This article is a part of the series Learn NoSQL in Azure where we will learn about the DocumentDB SQL API in detail. Azure Cosmos DB is a serverless NoSQL database service provided by Azure that is highly available, globally distributed, and responds within the minimum latency. Due to these features, it is a perfect fit for building modern-day applications using the DocumentDB or SQL API of Azure Cosmos DB.

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Aveek Das
Request Unit Calculation for NoSQL Azure Cosmos DB

Learn NoSQL in Azure: Diving Deeper into Azure Cosmos DB

June 25, 2021 by

This article is a part of the series – Learn NoSQL in Azure where we explore Azure Cosmos DB as a part of the non-relational database system used widely for a variety of applications. Azure Cosmos DB is a part of Microsoft’s serverless databases on Azure which is highly scalable and distributed across all locations that run on Azure. It is offered as a platform as a service (PAAS) from Azure and you can develop databases that have a very high throughput and very low latency. Using Azure Cosmos DB, customers can replicate their data across multiple locations across the globe and also across multiple locations within the same region. This makes Cosmos DB a highly available database service with almost 99.999% availability for reads and writes for multi-region modes and almost 99.99% availability for single-region modes.

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Aveek Das

Learn NoSQL in Azure: An overview of Azure Cosmos DB

June 16, 2021 by

In this article, we are going to learn Azure Cosmos DB. This article is a part of the series Learn NoSQL in Azure, where we will explore all the different types of non-relational databases that are supported in Azure at the moment. Azure is one of the most popular public cloud platforms that has a big market share all over the world. Cosmos DB is a part of the Databases section in Azure that allows customers to create and use NoSQL or non-relational databases and consume these at scale. You can leverage Cosmos DB to build highly scalable and robust cloud-based applications that support modern big data workloads. Let us understand more about what a NoSQL database is all about and how it is different from a relational database. Although this article focuses on the NoSQL related to Azure, it is to be known that other open-source projects support NoSQL databases like Apache Cassandra, etc. However, these topics are out of the scope of this article and we will focus on Azure mostly.

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Aveek Das
CloudFormation Template on AWS Console

Spinning up MySQL instances on RDS using CloudFormation Templates

April 20, 2021 by

In this article, we are going to discuss how to set up a MySQL instance on AWS RDS using Cloud Formation templates. In my previous article, How to configure an Amazon RDS environment for MySQL, I have provided a detailed walkthrough of how to set up a MySQL instance on Amazon. You can use the AWS console to provide all the information required for setting up the instance and then use it. However, in this article, we will discuss an automated way of achieving the same functionalities using Cloud Formation templates.

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Aveek Das
Creating a new table in AWS Athena

Getting started with Amazon Athena and S3

April 7, 2021 by

In this article, I am going to discuss Amazon Athena and how we can analyze data stored in S3 using Athena. As you might know, Amazon’s AWS has a lot of services in the field compute, databases, analytics, machine learning, and robotics, one of the most important and popular services is Amazon Athena. By the official definition, “Amazon Athena is an interactive query service that makes it easy to analyze data in Amazon S3 using standard SQL. Athena is serverless, so there is no infrastructure to manage, and you pay only for the queries that you run.”

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Hadi Fadlallah
list all created indexes in Neo4j

Export indexes and constraints from SQL Server graph databases to Neo4j

April 6, 2021 by

In our previously published article in this series, we explained how to migrate SQL Server graph tables into Neo4j and why migration could be beneficial. We only mentioned how to migrate node and edge tables, and we did not mention indexes and constraints. This article is an extension of the previous one, where we will explain how to export the supported indexes and constraints from SQL Server to the Neo4j graph database. In addition, all codes are added to the project we already published on GitHub.

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Nisarg Upadhyay
CASE expression in ORDER BY exmple

Learn MySQL: Control Flow functions

March 19, 2021 by

In this article, we are going to learn about the most common control flow functions. The control flow function evaluates the condition specified in it. The output generated by them can be a true, false, static value or column expression. We can use the control flow functions in the SELECT, WHERE, ORDER BY, and GROUP BY clause. Following are the most common functions:

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Aveek Das
Amazon Athena uses

An introduction to AWS Athena

March 19, 2021 by

In this article, I am going to introduce AWS Athena, a service offered by Amazon which allows users to query data from S3 using standard SQL syntax. AWS is considered to be a leader in the cloud computing world. Almost more than a hundred services are being offered by Amazon which offers competitive performance and cost-effective solutions to run workloads as compared to on-premise architectures. The services offered by Amazon range widely from compute, storage, databases, analytics, IoT, security, and a lot more. One of the popular areas of these services in the Analytics domain. This allows the customer to build architectures that answer key questions to their business decisions.

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Frank Solomon
A CTE WHERE clause filter, that keeps the indicated rows and removes everything else, would really help.

MySQL Recursive Queries

March 18, 2021 by

Introduction

As we lever MySQL to build database solutions, we might need to build a MySQL recursive query. In an earlier Database Journal article, I showed how to solve an integer parsing problem with SQL Server recursion. This article will show how to solve that same problem with MySQL recursion, highlighting the strong and weak points of this MySQL feature.

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Nisarg Upadhyay
Server status screen

Learn MySQL: Run multiple instances of MySQL Server on Windows 10

March 11, 2021 by

This article explains how we can run multiple instances of the MySQL Server on a single machine. In How to install MySQL database server 8.0.19 on Windows 10 article, I have explained the installation process of MySQL on windows 10. For the demonstration, I have installed MySQL 8.0.19 on my workstation. We can view the status of the MySQL Server using MySQL workbench. To view the server status, open MySQL workbench connect to the MySQL instance Click on Server Select Server Status.

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Aveek Das
EC2 Instance Types

Overview of EC2 Instance Types in AWS

March 8, 2021 by

In this article, I am going to talk about the various EC2 instance types available in AWS. EC2, abbreviated as Elastic Compute Cloud is an IaaS offering from AWS using which customers can provision virtual machines on the cloud using different combinations of CPU, RAM, disk and networking. There are many predefined instance types already available in the AWS console, which makes it extremely easy to spin up a new EC2 instance very easily.

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Aveek Das
AWS Certifications - AWS CCP

Preparing for the AWS Certified Cloud Practitioner (CCP) exam

March 1, 2021 by

In this article, I am going to discuss the AWS Certified Cloud Practitioner exam. Cloud Computing is one of the most fast-moving technologies in today’s world. With the rising demand for cloud computing platforms, more and more companies have already started using the cloud or are in the process of moving their infrastructure to the cloud. When the question of cloud vendors comes in, AWS is mostly preferred by major companies, also Azure is on the second list after AWS. With this demand, companies also continuously look for talented individuals who can help them lift and shift their infrastructure all already advise them with their existing cloud infrastructure.

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Nisarg Upadhyay
Choose MDF and NDF file

Move SQL database files in SQL Server 2019 on Linux

February 26, 2021 by

In this article, I am going to explain how we can move the SQL database files to another location in Ubuntu 18.04. For the demonstration, I have installed Ubuntu 18.04, SQL Server 2019 on Linux on my workstation. You can read SQL Server 2019 on Linux with Ubuntu to understand the step-by-step installation process of the SQL Server 2019 on Linux. We will move database files of AdventureWorks2019 and Wideworldimportors database. To move the databases, we can use any of the following methods:

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Nisarg Upadhyay
MySQL logs are enable

Learn MySQL: An overview of MySQL Binary Logs

February 9, 2021 by

In this article, we are going to learn about the concept of MySQL Binary Logs and their architecture. I am covering the following details in this article.

  1. An overview of MySQL binary logs and their architecture
  2. How to enable and disable binary logging
  3. View and change the location of the binary logs
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