Additional Articles


External Article

SQL and R

There is plenty that is novel and perhaps foreign to a new R user, but it's no reason to abandon your hard-earned SQL skills! In this article, Casimir Saternos explains that not only can you easily retrieve data from SQL Sources for analysis and visualisation in R, but you can also use SQL to create, clean, filter, query and otherwise manipulate datasets within R, using a wide choice of relational databases.

2015-10-08

6,620 reads

External Article

Automatic UNDO in Oracle

Automatic UNDO Management isn't voodoo or black magic, although it can seem that way when it isn't clearly understood. How does Oracle decide how many UNDO segments to create at startup, and what is the underlying goal of the process? David Fitzjarrell investigates.

2015-10-06

3,322 reads

External Article

Power Query Formula Language in Power BI Desktop

The Power Query Formula Language (PQFL) is a functional language that drives the Power BI transformations, and allows you to create mashup queries from scratch. In this article, Rob Sheldon demonstrates how to use it in Power BI Desktop to extract data from its source, filter rows, specify the columns, clean the data, and create visualisations.

2015-10-05

2,714 reads

External Article

How to Avoid Conditional JOINs in T-SQL

Relational databases go out of their way to execute SQL, however bad the crimes against Codd and relational theory within the query might be. The 'conditional join' can be executed, but at great cost. As always, it is much better to sit back and restate the problem in a set-based way - Dwain Camps explains.

2015-10-02

7,474 reads

Blogs

Blog a Day – Day 1: History of AI

By

it has been a year since i have not written much on the blog...

A New Word: on tenderhooks

By

on tenderhooks – adj. feeling the primal satisfaction of being needed by someone, which...

Ramblings about data communities and your contributions, no excuses

By

I have been active in the data community throughout my career. I have met...

Read the latest Blogs

Forums

Ola Hallengren Index Optimize Maintenance can we have data compression = page

By JSB_89

I have a quick question on Ola Hallengren Index Optimize Maintenance . Do we...

how do i map the "current" object entry in for each to one variable

By stan

hi, in an ssis  for each loop over an object variable called MyListVariable, i...

Simulating Mercury’s Orbital Motion Using Pure T-SQL (NASA 2025 Dataset)

By NKTgLaw

SQL Server is typically viewed as a transactional or analytical database engine. However, it...

Visit the forum

Question of the Day

String Similarity I

On SQL Server 2025, when I run this, what is returned?

SELECT EDIT_DISTANCE_SIMILARITY('SQL Server', 'MySQL')

See possible answers