Dinesh Asanka
Multiclass classificaiton for comparison in Azure Machine Learning.

Comparing models in Azure Machine Learning

November 23, 2020 by

Introduction

After discussing a few algorithms and techniques with Azure Machine Learning let us discuss techniques of comparison in Azure Machine Learning in this article. During this series of articles, we have discussed the basic cleaning techniques, feature selection techniques and Principal component analysis, etc. After discussing Regression and Classification analysis let us focus more on performing comparison in Azure Machine Learning.

Read more »
Aveek Das

Designing a Modular ETL Architecture

November 17, 2020 by

In this article, I am going to demonstrate in detail the Modular ETL Architecture. ETL is a vast concept which explains the methodology of moving data across various sources to destinations while performing some sort of transformations within it. This is an advanced article that considers that the user has a substantial amount of understanding about how ETL is implemented using different tools like SSIS and the underlying working principle along with how to deploy multiple packages using SSIS. It is extremely important to implement a well-designed ETL architecture for your organization’s workload, otherwise, it might lead to performance degradations along with other challenges. To keep things simple, I will just explain the Modular ETL Architecture in this article which will be followed by a detailed hands-on tutorial in the next article – “Implementing Modular Architecture in ETL using SSIS”.

Read more »
Rajendra Gupta
READPAST in the update statements

Explore the SQL query table hint READPAST

November 14, 2020 by

SQL Server creates an optimized execution plan based on the available inputs such as statistics, indexes. By default, it chooses a cost-optimized execution plan and executes the query. Sometimes, we use SQL queries table hints to override the default mechanism. Developers popularly use WITH (NOLOCK) query hint in a Select statement to avoid blocking issues.

Read more »
Frank Solomon
Start the Google Cloud resource creation process.

Build a Google BigQuery Resource

November 12, 2020 by

Introduction

We can rely on Azure SQL to build reliable, high-quality relational database solutions. In the cloud, Google offers BigQuery as a big data product that has large data capacities, and a standard SQL syntax. Although it can handle data manipulation, it works better as a data warehouse product because of certain product limitations. If we can integrate these products, they become even more useful. This two-part article will show how to link these products together. Part one here will show how to build a BigQuery resource, and then build a Google OAuth refresh token, or security key. Part two will show how to set up an Azure SQL data resource, and build, configure, and test the Azure Data Factory that will link those resources.

Read more »
Emil Drkusic
the data model

Learn SQL: SQL Injection

November 2, 2020 by

SQL Injection is a well-known technique used to attack SQL-based applications. In this article, we’ll focus on examples showing how you could exploit database vulnerabilities using this technique, while in the next article we’ll talk about ways how you can protect your application from such attacks.

Read more »
Dinesh Asanka
The Sample experiment for the Classification technique.

Prediction with Classification in Azure Machine Learning

October 30, 2020 by

Introduction

After discussing Regression in the previous article, let us discuss the techniques for Classification in Azure Machine learning in this article. Like regression, classification is also the common prediction technique that is being used in many organizations. Before the regression we have discussed basic cleaning techniques, feature selection techniques and Principal component analysis in previous articles, now we will be looking at data classification techniques in azure machine learning in this article.

Read more »
Esat Erkec
Detecting the tempdb database spills with extended events

Explore secrets of the SQL Server tempdb database

October 29, 2020 by

In this article, we will uncover some secrets about the SQL Server tempdb database. Tempdb is a system database and it is used for various internal and user operations. Besides this, the tempdb has many unique characteristics, unlike the other databases. When we take into account all of these features of the tempdb, there is no doubt that it is an essential part of the SQL Server.

Read more »