Poor Little Misunderstood Views
Some people love ‘em, some people hate ‘em. But, one thing I have found to be nearly universal is that...
2010-07-29
59,735 reads
Implicit Data Conversion: The "HHidden" Bottleneck
Have you ever written a query that just seems to take forever? You have looked it over time and time...
2010-07-13
972 reads
WHERE to begin
Many people, once they start getting comfortable writing SQL, begin asking the same questions. One such common question is “Does...
2010-07-07
1,292 reads
Indexes are best utilized in WHERE, not JOIN
A pervasive oversight in database indexing by newer database users is relying solely on indexes used for joining tables together...
2010-07-01
3,732 reads
Function Calls are Evil Incarnate
The following queries look extremely innocent. However, they are all application killers once the target table grows to more than...
2010-06-28
1,345 reads
My SELECT statement has hung!
One of the first roadblocks many developers run into when using SQL Server for the first time is firing off...
2010-06-24
2,539 reads
The Power of Indexes
Time and time again I have run into the scenario where a developer who is moving into using databases is...
2010-06-22
704 reads
Killer I/O
Here’s a big statement
WHEN WRITING DATABASE QUERIES, 95% OF THE TIME THE BOTTLENECK IS IN THE I/O, not the CPU,...
2010-06-10
964 reads
A Guitar is Just a Piece of Wood
In my real-life I play guitar. Being an analytical sort-of-fella I found myself inhaling all the books, videos, advice, etc....
2010-06-08
654 reads
The Nature of the Database-Driven Developer
Bear with me as I wax philosophical for two sentences. Our societies are becoming more polarized with each passing day. ...
2010-06-03
677 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