Finding single use plans in the plan cache
A single use plan is an entry in the SQL Server plan cache that was only used once. When a...
2019-03-07 (first published: 2019-02-19)
3,794 reads
Writing my presentation part 1: The brainstorm/dump
For this session, I’m relying on a mixture of previous blog posts and new material/demos that I’ll have to write....
2019-03-07
393 reads
Writing a new session/Preparing for SQL Saturday Chicago
So, I’m presenting a session at SQL Saturday Chicago on March 23, 2019. This is a new session, called Performance...
2019-03-06
258 reads
CTRL + F in SSMS execution plans
I just discovered this the other day and I had to share it.
First, we need a query in Management...
2019-03-05
624 reads
Partitioning 3: Beyond just partition elimination
In Partitioning 2, I showed how to analyze which partitions were accessed by our Index Seek. However, we were searching...
2019-03-04 (first published: 2019-02-14)
1,847 reads
It’s always parameter sniffing: Line Endings
Combining a few themes of recent posts today. I’ll mix in some sp_executesql, it’s always parameter sniffing, and the plan...
2019-02-28
946 reads
A short guide to sp_executesql
Last week I talked about single use plans. One way to increase execution plan re-use is to parameterize queries by...
2019-02-27
1,602 reads
Partitioning 1: Non-partition aligned queries
Here’s my take on partitioning. I’ll be focusing on getting queries to perform on partitioned tables, and not on partition...
2019-02-27 (first published: 2019-02-11)
2,448 reads
Database context and compatibility level
To add onto yesterday’s post about which cardinality estimator (CE) your query will use, there’s an additional complexity. This specifically...
2019-02-26
822 reads
Which cardinality estimator (CE) was used in my query?
SQL Server 2008 is reaching end of support this year, so upgrading your SQL Server might be on your mind....
2019-02-25
552 reads
Blogs
A New Word: Ecstatic Shock
By Steve Jones
ecstatic shock – n. a surge of energy upon catching a glimpse from someone...
The CDO’s Playbook for AI Driven Decision Making
By Chris Yates
The New Arena of Leadership The role of the Chief Data Officer is no...
sp_snapshot – The easy way to take database snapshots of one or more databases – V3.0
Presenting you with an updated version of our sp_snapshot procedure, allowing you to easily...
Forums
Arc Enabled SQL Server
Just saw the "Azure Extension for SQL Server" Does anyone has experience with it?...
Recursive Select - What is this really doing
I've noticed several instances of what looks like a recursive insert with the format:...
Cleaning Up the Cloud
Comments posted to this topic are about the item Cleaning Up the Cloud
Question of the Day
The Maximum Value in the Identity Column
I have a table with this data:
TravelLogID CityID StartDate EndDate 1 1 2025-01-01 2025-01-06 2 2 2025-01-01 2025-01-06 3 3 2025-01-01 2025-01-06 4 4 2025-01-01 2025-01-06 5 5 2025-01-01 2025-01-06I run this code:
SELECT IDENT_CURRENT('TravelLog')
I get the value 5 back. Now I do this:
SET IDENTITY_INSERT dbo.TravelLog ON
INSERT dbo.TravelLog
(
TravelLogID,
CityID,
StartDate,
EndDate
)
VALUES
(25, 5, '2025-09-12', '2025-09-17')
SET IDENTITY_INSERT dbo.TravelLog OFF
I now run this code.
DBCC CHECKIDENT(TravelLog)
GO
INSERT dbo.TravelLog
(
CityID,
StartDate,
EndDate
)
VALUES
(4, '2025-10-14', '2025-10-17')
GO
What is the value for TravelLogID for the row I inserted for CityID 4 and dates starting on 14 Oct 2025?
See possible answers