2011-11-29
2,507 reads
T-SQL
2011-11-25
2,393 reads
SQL Server Functions: The Basics
SQL Server's functions are a valuable addition to T-SQL when used wisely. Jeremiah Peshcka provides a complete and comprehensive guide to scalar functions and table-valued functions, and shows how and where they are best used.
2011-11-24
4,190 reads
2011-11-23
2,822 reads
2011-11-22
2,646 reads
Dealing with Incomplete Data - A T-SQL Puzzle 1
Client data received for processing may have invalid records based on processing requirements. Identifying and dealing with bad records in a specific scenario is the object of this article.
2011-11-22
4,267 reads
2011-11-21
2,415 reads
2011-11-17
2,503 reads
2011-11-03
2,761 reads
2011-10-24
2,813 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