Temporal tables a.k.a Table Versioning was introduced in SQL Server 2016 and is an easy, convenient way to track changes to data. A good introduction to temporal tables can be found here. One of the key advantages of versioning tables is easy of querying – or getting a ‘single pane of glass’ look of how […]
2019-07-29
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One of the most significant and hardest challenges we face as data professionals (or generally anyone in IT) is how to keep up with learning. Most of us are...
2019-06-05 (first published: 2019-05-17)
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Its really hard to believe that its been 20 years since the start of the PASS organization – the volunteer run...
2019-03-19
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I cannot write this without stating some history. I have been part of PASS community since 1999. That is 21...
2019-03-11
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2018-12-12
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2018-12-03
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I am the proud host of TSQL Tuesday for the month of November 2018.
My call to post entries is here ....
2018-11-28 (first published: 2018-11-18)
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I have been a regular attendee at PASS Summit for 15 years now. This year (2018) marked my 15th year...
2018-11-22
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2018-11-19
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2018-11-08
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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