Column order can matter
Ordinarily, column order of a SQL statement does not matter.
Select a,b,c
from table
will produce the same execution plan as Select c,b,a
from...
2011-06-06
2,177 reads
Ordinarily, column order of a SQL statement does not matter.
Select a,b,c
from table
will produce the same execution plan as Select c,b,a
from...
2011-06-06
2,177 reads
At the Kent user group we have two upcoming events. Both are to be held at F-Keys Training suite http://f-keys.co.uk/...
2011-06-05
644 reads
Thanks to those who turned out to see my presentation at SqlHerts on Thursday 26thMay. Its a true pleasure to...
2011-05-29
1,334 reads
If you are in anyway interested in SQL Server and live in the UK, you cant of failed to of...
2011-04-11
707 reads
If you’ve answered yes to both of those questions , Jacob Sebastian has some more question for you.
Every day in March...
2011-03-12
540 reads
I am not a lawyer. Let me say that again, I am not a lawyer.
Todays Dilbert has prompted me...
2011-02-24
807 reads
In my previous post “Denali Paging – is it win.win ?” I demonstrated the use of using the Paging functionality within Denali. ...
2010-11-19
687 reads
I'm not one for automatically poo-pooing new ideas, new practices and new technology. Rather I like to take a measured...
2010-11-10
793 reads
Greg Gonzalez (blog | twitter) of SqlSentry, last night released a very cool new and free product. Plan explorer is a...
2010-10-21
2,937 reads
In a previous blog entry (Inconsistent NullIf behaviour), Jeff Moden and Dan Halliday(twitter) both made a very similar observation.
When executing...
2010-09-06
546 reads
By Steve Jones
I had a customer ask about analyzing their Test Data Manager (TDM) usage to...
By Steve Jones
I had an idea for an animated view of a sales tool, and started...
Next Monday, February 9, 2026, my one-day live online training SQL Server Query Tuning...
Comments posted to this topic are about the item SQL Server 2025 Query Performance...
This is a generic question. To the moderators, I wasn't sure where to place...
Good Afternoon, I have built a table with four columns: Period(Month), Category, Numerator, Denominator....
On SQL Server 2025, what happens when I run this code:
SELECT JSON_OBJECTAGG( 'City':'Denver') GOSee possible answers