2017-09-27
206 reads
Kenneth Fisher
SQL Puzzle – Prime Numbers
My goal here is to have something fun (and hopefully educational/thinky) (and yes, I did just make up the word...
2017-09-27
453 reads
Saving and restoring session options settings
There are a fair number of options settings. ANSI_NULLS, ARITHABORT, QUOTED_IDENTIFIER, etc. Each session has its own set of configurations....
2017-09-25
458 reads
Uniquifier is a rather unique word isn’t it?
tl;dr; The uniquifier is used to make a non-unique key in a clustered index unique.
Uniquifier is a rather funny name,...
2017-09-22 (first published: 2017-09-18)
1,652 reads
Do what I say, not what I do
I told you not to use NOLOCK even though I use it sometimes.I told you not to shrink databases, even...
2017-09-20
431 reads
Help! My query is too fast!
Said no one ever. Well, maybe. I have had occasions where I needed a brief pause in the middle of...
2017-09-20 (first published: 2017-09-14)
3,233 reads
Turn on/off Azure VMs with Powershell
T-SQL Tuesday has rolled up on us yet again. This month it’s Rob Sewell’s (b/t) turn to host and picked...
2017-09-12
436 reads
Create an empty table from a SELECT statement but without the IDENTITY.
A while back I did a post about creating an empty table using a SELECT statement. Basically doing something like...
2017-09-11 (first published: 2017-08-28)
3,066 reads
There EXISTS a place where SELECT 1/0 doesn’t return an error.
Kendra Little (b/t) reminded me of this fun little trick (with fairly important ramifications) in her latest quiz on logical...
2017-09-07
658 reads
Changing the version of an SSIS package.
Of all of the annoying parts of SSIS, the major version sensitivity has to be the most annoying. Let’s say...
2017-09-06 (first published: 2017-08-23)
3,320 reads
Blogs
Advice I Like: Fear and Imagination
By Steve Jones
Fear is fueled by a lack of imagination. The antidote to fear is not...
Cloud Data Driven User Group 2025 – Slides & Scripts
The slidedeck and the SQL scripts for the session Indexing for Dummies can be...
Leading Through Change: Guiding Teams in Times of Uncertainty
By Chris Yates
Change is not a disruption in technology; it is the rhythm. New frameworks appear,...
Forums
Building AI Governance and Policies- First Steps
Comments posted to this topic are about the item Building AI Governance and Policies-...
Simple delete causes table scan on other tables with foreign key
Why is sql doing a full scan VS seeking on the index? I've included...
Show/Hide number of rows in table
We have a report that has multiple tables that list the top 15 performers...
Question of the Day
Checking Identities
The DBCC CHECKIDENT command is used when working with identity values. I have a table with 10 rows in it that looks like this:
TravelLogID CityID StartDate EndDate 1 1 2025-01-11 2025-01-16 2 2 2025-01-11 2025-01-16 3 3 2025-01-11 2025-01-16 4 4 2025-01-11 2025-01-16 5 5 2025-01-11 2025-01-16 6 6 2025-01-11 2025-01-16 7 7 2025-01-11 2025-01-16 8 8 2025-01-11 2025-01-16 9 9 2025-01-11 2025-01-16 10 10 2025-01-11 2025-01-16The docs for DBCC CHECKIDENT say this if I run with only the table parameter: "If the current identity value for a table is less than the maximum identity value stored in the identity column, it is reset using the maximum value in the identity column. " I run this code:
DELETE dbo.TravelLog WHERE TravelLogID >= 9
GO
DBCC CHECKIDENT(TravelLog, RESEED)
GO
INSERT dbo.TravelLog
(
CityID,
StartDate,
EndDate
)
VALUES
(4, '2025-09-14', '2025-09-17')
GO
What is the identity value for the new row inserted by the insert statement above? See possible answers