Power BI – Hungry Median
Introduction Median is a useful statistical function, which first time appeared in SSAS 2016 and in Power BI around that year as well. There are several articles on how...
2020-12-08 (first published: 2020-11-24)
331 reads
SSAS Tabular – Process Add vs Partition Merge
Time keeps on running and as I promised in my last article I would like to compare the Process ADD vs Partition Merge technique. In the previous blog I...
2020-06-11 (first published: 2020-05-25)
445 reads
Azure Analysis Services – Processing Hot & Cold Data using Tabular model partitions
Introduction Recently have been working on a “Proof of Concept” task where I wanted to test the capabilities of Azure Analysis Services Tabular model when loading data from different...
2020-04-07 (first published: 2020-03-30)
986 reads
SSAS Tabular – Process Add memory consumption
For me it’s a bit surprising how little information can be found regarding the “Process Add” option which I consider as the best choice for incremental data load to...
2020-01-23
60 reads
Query Performance Tuning with Filtered Statistics
Introduction I recently got a call from our DBA telling me that the CPU usage is hitting 100% on the DB server and the ETL process runs for more...
2019-09-04 (first published: 2019-08-26)
686 reads
How to get Live Execution Plan using Extended Events
Introduction
Have you ever found yourself in a situation where you were supposed to troubleshoot a long running expensive query that...
2019-03-06 (first published: 2019-02-19)
6,742 reads
Extended Events: Detect Implicit Conversions that affect execution plans
Implicit Conversions – Introduction
In this blog post, I’ll explain and demonstrate how to use Extended Events to detect Implicit Conversions that...
2019-01-24 (first published: 2019-01-15)
2,838 reads
Clustered Column Store Load Pitfalls – Magic number 64 when using WHERE IN clause
The Problem
During our workload we have recognized a difference in performance for queries using IN clause. We are building query...
2018-12-18
174 reads
Watch out – new Database Level Health Detection can send your AOAG down!
Background
In the past, Windows Server Failover Clustering (WSFC) cluster only monitored the health of your entire Always On Availability Groups...
2018-11-20
293 reads
Failed Installation of SQL Server Cumulative Updates Debugged
Background
Our customer has recently experienced an issue during the installation of the latest cumulative updates in their SQL Server environment....
2018-11-05
635 reads
Blogs
Claude Code Helps Analyze Test Data Manager Log Files
By Steve Jones
I had a customer ask about analyzing their Test Data Manager (TDM) usage to...
PowerPoint to HTML with Claude AI
By Steve Jones
I had an idea for an animated view of a sales tool, and started...
Don’t Miss Out – SQL Server Query Tuning Fundamentals Starts Next Monday!
Next Monday, February 9, 2026, my one-day live online training SQL Server Query Tuning...
Forums
SQL Server 2025 Query Performance Tuning: Troubleshoot and Optimize Query Performance
Comments posted to this topic are about the item SQL Server 2025 Query Performance...
Is it uncommon for Dev's to have a data model of the source data
This is a generic question. To the moderators, I wasn't sure where to place...
ROLLUP to calculate Month total for all Categories
Good Afternoon, I have built a table with four columns: Period(Month), Category, Numerator, Denominator....
Question of the Day
Creating JSON I
On SQL Server 2025, what happens when I run this code:
SELECT JSON_OBJECTAGG( 'City':'Denver') GOSee possible answers