20 February 2019
20 February 2019

The BI Journey: The Expert’s Advice – Part 1

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Creating a quick dashboard with a few reports may be the beginning of a BI solution, but unless time is spent on the underlying model, it won't be adaptable enough to grow. In this article by Gogula Aryalingam, you'll see how the advice of a mentor helped a newbie understand how to create a flexible model that will lead to a valuable BI solution. … Read more
07 February 2019
07 February 2019

Apache Cassandra Data Modeling and Query Best Practices

Organizations have many choices when it comes to database platforms. Choosing the right one for an application should be based on the application’s characteristics and the platform’s features. In this article, Pushpa Sekhara explains why the Apache Cassandra database might be a good choice and how to get the most from it.… Read more
21 January 2019
21 January 2019

The BI Journey: The Analyst

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Most organizations today understand the value of analysing their data. In some cases, they haven’t realized the value or are just getting started. This article, by Data Platform MVP Gogula Aryalingam, describes how analytics can start small – with just one Power BI dashboard – and grow from there. … Read more
14 January 2019
14 January 2019

Using the DAX Calculate and Values Functions

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In the first two articles in this series on creating DAX formulae, Andy Brown of Wise Owl Training showed how to create calculated columns and measures. In this third article, he turns his attention to two of the most important DAX functions (CALCULATE and VALUES), showing how and when to use them. If DAX knowledge can be compared to a heavily fortified castle, the CALCULATE function is the drawbridge giving access to it. … Read more
10 January 2019
10 January 2019

Empty Thoughts: Working with NULL

Whether or not to have NULLable columns in a table can be a religious debate, and how missing data is represented should be carefully considered during database design. In this article, Joe Celko considers the ways that SQL Server handles NULLs in several situations. … Read more
07 January 2019
07 January 2019

Protecting SQL Server Data Using Static Data Masking

In order to protect data and comply with regulations such as the GDPR and HIPAA, databases used by developers and testers must not contain private and sensitive data from production databases. To help DBAs protect data, Microsoft have released a new feature as part of SSMS called Static Data Masking. In this article, Greg Larsen demonstrates how to use this new feature.… Read more
31 December 2018
31 December 2018

Introduction to SQL Server Security — Part 1

Security is often considered the most important of a database administrator's responsibilities. SQL Server has many powerful features for security and protecting data, but planning and effort are required to properly implement them. In this article, the first of a series, Robert Sheldon reviews the many components available to secure and protect SQL Server databases. … Read more
28 December 2018
28 December 2018

Creating Measures Using DAX

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In the first article in this series, Andy Brown demonstrated how to create calculated columns in Power BI using the DAX language. This second article in the series explains what measures are, and how you can use DAX to create measures within Power BI. The formulae in the article apply equally well to PowerPivot and Analysis Services Tabular Model. … Read more
05 December 2018
05 December 2018

Data Quality

Problems with data quality are easier and cheaper to prevent than to solve later. In this article, Joe Celko talks about data quality and where the issues tend to happen.… Read more