What is normal? Finding outliers with R
How do you currently set alerting thresholds? What is normal? And more importantly, what is truly abnormal? We will explore these questions.
UNION ALL Optimization
Paul White digs into row goals as he explains some interesting and inconsistent behavior with UNION ALL queries in SQL Server.
Guilty of Over-Customising
Am I guilty of over-customising software? Read this and let us know what you think.
The Value of Surveys
Phil Factor on the perils of trying to squeeze good insights out of bad surveys.
Two Approaches to Addressing Circular References in SSDT
Both options have their advantages and disadvantages. Neither is universally right for all situations. Understand the differences before picking the model that works for your situation.
Guide to enhancing privacy and addressing GDPR requirements with the Microsoft SQL platform
A new whitepaper published today gives Microsoft SQL customers technical guidance for how to approach GDPR compliance with Microsoft SQL technologies.
Scala and Apache Spark in Tandem as a Next-Generation ETL Framework
Scala and Apache Spark might seem an unlikely medium for implementing an ETL process, but there are reasons for considering it as an alternative. After all, many Big Data solutions are ideally suited to the preparation of data for input into a relational database, and Scala is a well thought-out and expressive language. Krzysztof Stanaszek describes some of the advantages and disadvantages of a scala-based approach to implementing and testing an ETL solution.
Understanding OPENJSON and FOR JSON in Azure and SQL 2016
An example of exporting and importing table data with JSON in Azure and SQL Server 2016.
Statistics in SQL: Pearson’s Correlation
Some people will assure you that you can't do any serious statistical calculations in SQL. In the first of a series of articles, Phil factor aims to prove them wrong by explaining how easy it is to calculate Pearson's Product Moment Correlation.
Blogs
Red Flags in Your Query (T-SQL Tuesday #200)
By Zikato
When I'm looking at a query, I bet it's bad if I see... a...
T-SQL Tuesday #200: When I Look at a Query …
By Steve Jones
This month is a milestone for T-SQL Tuesday. It’s number 200, which doesn’t sound...
Reflections on the Life of a DBA
The DBA life is fraught with pain. Those battles that we endure are mostly...
Forums
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A Quick Second Opinion
Comments posted to this topic are about the item A Quick Second Opinion
Five Intelligent Query Processing Features in SQL Server 2022 That Quietly Tune Your Workload
Comments posted to this topic are about the item Five Intelligent Query Processing Features...
Question of the Day
Checking the Error Log I
On my SQL Server 2025, I want to search the error log from my T-SQL code for potential issues and then inform an administrator. What is the current way to easily query the error log?
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