Baseline SQL Server with SQL Sentry Performance Advisor
Baselines can be any set of metrics that have been recorded to give you an understanding of what is the...
2013-06-24
2,882 reads
Chris McGowan
Dedicated Administrator Connection (DAC)
We all dread the scenario whereby SQL Server is under so much load and has a complete lack of resources...
2013-05-29 (first published: 2013-05-23)
3,555 reads
Object Qualification
I came across an interesting issue recently with NHibernate, now it is widely known I despise ORM’s, in my experience...
2013-05-22 (first published: 2013-05-15)
2,754 reads
DTA and Hypothetical Indexes
For those of you that don’t know DTA stands for Database Engine Tuning Adviser and is available from the Tools...
2013-05-15 (first published: 2013-05-09)
11,377 reads
SQL Server Hardware and Acronyms
Over the weekend I finished reading yet another Red Gate book, this one was SQL Server Hardware by Glenn Berry...
2013-05-07
904 reads
Index Tuning
This week I've been carrying out some performance tuning of some of the more intensive procedures in one of our environments. Using...
2013-03-21 (first published: 2013-03-14)
3,617 reads
Cost Threshold for Parallelism
Parallelism, where to start? Well let’s start right at the beginning shall we with the question, what is parallelism? Simply...
2013-02-26
3,481 reads
Fun with dates
Every year me and a group of friends attend the Royal International Air Tattoo (RIAT) at RAF Fairford, for us it...
2013-02-17
785 reads
T-SQL Gotcha
I came across an interesting issue a few days ago that I thought I would blog about. The issue is...
2013-02-15
1,591 reads
Script Replication with PowerShell
I promised you some PowerShell scripts this year and this post is the first one. I can see the value...
2013-02-14
6,719 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