SQL Homework – July 2017
For years Russ Thomas (b/t) has done a Monthly DBA Challenge and in fact I’ve used it as insperation a...
2017-07-03
407 reads
Kenneth Fisher
Temp table quiz
Brent Ozar (b/t) posted a pop quiz on twitter earlier today.
Go ahead and give it a shot .. I’ll wait.
So?...
2017-06-26
665 reads
Turning ANSI_PADDING off, and why you shouldn’t
I ran into an interesting error the other day while doing a partition switch.
Partition switch failed because : column ‘xyz’...
2017-06-26 (first published: 2017-06-15)
3,167 reads
Dynamically generate the command line DMA statement for each database
If you are upgrading your instance to 2016 (or 2017 soon) then you probably are going to want to run...
2017-06-21
643 reads
Adding Identity to an existing column
A friend had an interesting problem today. A really big table (multiple millions of rows) and no primary key. He...
2017-06-19
1,476 reads
SQL Crossword
I thought I’d do another crossword. Enjoy! If you need any help with it feel free to let me know...
2017-06-16 (first published: 2017-05-31)
2,802 reads
Buzzword Bingo
Grant Fritchey (b/t) is our host for T-SQL Tuesday this month and surprise surprise he’d like to talk about DEVOPS....
2017-06-13
967 reads
Running multiple queries at the same time.
I read an interesting question today. Someone wanted to be able to run the same stored procedure multiple times, at...
2017-06-08 (first published: 2017-05-24)
9,312 reads
UDP vs TCP
If you’ve worked much with named instances you’ve probably had to deal with the question “What port is that instance...
2017-06-07
535 reads
Backup to NUL
Yes, I spelled that correctly. NUL not NULL. NUL is basically a location you can send a backup to. In...
2017-06-05
4,640 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
How to use data pre-computed in previous ETL SSIS Nodes?
I'm building ETL packages in SSIS. My data comes from an OLE DB Source...
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...
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