SQL University: Advanced Indexing – Indexing Strategies
Right, I know it’s Friday and everyone’s tired and looking forward to the weekend, but I do need to finish...
2011-11-11
1,590 reads
SQL In The Wild
SQL University: Advanced Indexing – Filtered Indexes
Welcome back to day 2 of Advanced Indexing. Today we’re going to look at a feature that was added in...
2011-11-09
1,937 reads
SQL University: Advanced indexing – Sorting and Grouping
Good day everyone and welcome to another week of SQL University. I know we’re getting close to the end of...
2011-11-07
2,687 reads
24 Hours of PASS Questions
I finally found the time to work through the questions from the 24 Hours of PASS session that I did....
2011-09-27
749 reads
Compiles and recompiles
I want to spend some time over the next few months looking at query compilation and the plan cache, and...
2011-08-16
3,673 reads
All about Execution Plans
Coming to the PASS Summit in October this year? Excellent!
I say excellent, because Grant (blog|twitter) and I are presenting a...
2011-08-09
769 reads
SQLSkills Immersion training in London
Just short of the winter solstice, I bailed out of a freezing cold Johannesburg for warmer climates; well, actually for...
2011-07-22
1,252 reads
Converting OR to Union
When I looked at indexing for queries containing predicates combined with OR, it became clear that the are some restrictive...
2011-07-05
1,630 reads
Are all updates split into delete-insert?
This should be another quick one.
Earlier I saw a forum post where someone asserted that SQL always executes an update...
2011-06-21
4,802 reads
T-SQL Tuesday: Disasters don’t just come in huge
So we’re supposed to talk about disasters we’ve had or discuss disaster recovery technologies. I’m going to take a slightly...
2011-06-14
735 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