2011-08-31 (first published: 2011-08-24)
2,500 reads
T-SQL
2011-08-24
2,767 reads
2011-08-17
3,033 reads
Simple Script to Backup All SQL Server Databases
Sometimes things that seem complicated are much easier then you think and this is the power of using T-SQL to take care of repetitive tasks. One of these tasks may be the need to backup all databases on your server.
2011-08-12
5,986 reads
Simplify Large Queries with Temporary Tables, Table Variables and CTEs
This article demonstrates how to manage the development of complex queries by building them in stages with temporary tables, table variables and common table expressions.
2011-08-09
10,314 reads
Hidden RBAR: Counting with Recursive CTE's
"Counting" is essential to many high performance code techniques. SQL Server MVP, Jeff Moden, shows us how to make sure that we're "Counting" and not "Crippling" our trick-code.
2011-08-08
22,384 reads
2011-08-04
2,684 reads
2011-08-03
2,980 reads
2011-07-25
2,735 reads
2011-07-20
2,878 reads
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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