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.
2017-06-13
1,808 reads
Nick Burns
Combining R and SQL Server to diagnose performance bottlenecks
Using clustering algorithms to analyse index usage data from SQL Server’s DMVs & simplify complex performance investigations.
2017-05-29 (first published: 2015-12-07)
9,877 reads
Using R to Identify Key Features Quickly
Typical BI dashboards display data summaries like counts and averages. We use R to extend on these to identify key associations in a dataset.
2017-01-09
2,337 reads
Beyond prediction with R & SQL Server
Predictive / prescriptive analytics is regarded the highest level of advanced analytics. In this post, we emphasise the importance of exploratory analytics to derive meaningful insight.
2016-08-18
2,197 reads
Adding an Article Without a Full Snapshot
Have you got transactional replication in your SQL environment? Do you need to add a new table to your publication, but can't afford the time necessary to create a full new snapshot? Here is a step-by-step guide. Thankfully, adding a single table is easier than I thought.
2015-01-05
21,813 reads
Blogs
Beyond VARBINARY: How to Store PDFs in SQL Server Using FILESTREAM and FileTable
By gbargsley
Hello, dear blog reader. Today’s post is coming to you straight from the home...
Impactful Sessions I’ve Seen: T-SQL Tuesday #196
By Steve Jones
This month I’m thrilled that Steve Hughes is hosting. I’ve read this Data on...
Changing the Cardinality of a FK in Redgate Data Modeler
By Steve Jones
One of the things a customer asked recently about Redgate Data Modeler was how...
Forums
Creating a JSON Document I
Comments posted to this topic are about the item Creating a JSON Document I
Who is Irresponsible?
Comments posted to this topic are about the item Who is Irresponsible?
Designing Database Changes Before Deployment: Level 1 of the Stairway to Reliable Database Deployments
Comments posted to this topic are about the item Designing Database Changes Before Deployment:...
Question of the Day
Creating a JSON Document I
I want to create a JSON document that contains data from this table:
TeamID TeamName City YearEstablished 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933If I run this code, what is returned?
SELECT json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers