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)
6,888 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)
2,870 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
184 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
305 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
644 reads
DAX – Cumulative Total and Blank Handling
When developing DAX measure, you should be aware that Blank value behavior might be similarly insidious as NULL value in...
2018-10-23
433 reads
Internal Query Processor Error Debugged
In Joyful Craftsmen we provide, among other things, technical support to our customers, which from time to time involves us...
2018-10-16
876 reads
CCI – Data Loading considerations with Partitioned Tables and CCI
Introduction
In this blog post, I would like to describe two case scenarios of bulk loading data, using SSIS, into a...
2018-10-10
280 reads
CCI Bulk Load Pitfalls 2 – Parametrization of Dynamic SQL
Intro
In the last blog I showed how important statistics are for CCI bulk load even on small tables. This time...
2018-09-26
156 reads
CCI – How to load data for better Columnstore Segment Elimination
Introduction
In this blog post, I would like to explain what a columnstore segment elimination is and how to load data...
2018-09-11
194 reads
Blogs
Au Revoir for now
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
The SUM of Nothing: #SQLNewBlogger
By Steve Jones
I caught this interesting item over on Pinal Dave’s blog: Eleven Interview Questions that...
Forums
Let's Talk Certifications
Comments posted to this topic are about the item Let's Talk Certifications, which is...
Building a SQL Server Fleet Audit That Leadership Actually Reads
Comments posted to this topic are about the item Building a SQL Server Fleet...
Smart AI Agents and Data Security
Comments posted to this topic are about the item Smart AI Agents and Data...
Question of the Day
RegEx Functions IV
I have this data in a table in a SQL Server 2025 database:
EmailAddressID EmailAddress 7 dylan0@ADVENTURE-WORKS.COM 8 Diane1@ADVENTURE-WORKS.COMIf I run this query, which row(s) are returned?
SELECT top 10 * FROM person.EmailAddress WHERE REGEXP_LIKE(EmailAddress, '^D', 'i') AND BusinessEntityID IN (7,8)See possible answers