2012-04-05
2,697 reads
T-SQL
2012-04-25 (first published: 2012-04-02)
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2012-03-30
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Find Customers Who Bought "A" and "B" But Not "C" (SQL Spackle)
A simple problem that can become complex in T-SQL. How do you find the rows that match 2 conditions, but not a third, in an efficient manner. MVP Jeff Moden gives us a solution.
2014-06-06 (first published: 2012-03-29)
41,640 reads
Dealing with custom date formats in T-SQL
Should I be formatting dates on the database side? What tools can I use in SQL Server to format and parse dates? This article helps you decide which one best suits your needs.
2012-03-23
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2012-03-21
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2012-03-16
2,892 reads
Large table cleanup with minimal locks
How do you delete millions of rows with minimal impact to the business? This article gives you a way to accomplish the removal of old data.
2012-03-06
15,478 reads
Split Function to break the Job History Message into a Table
Split Function for T-SQL Server to break the Job History Message into Table.
2012-03-22 (first published: 2012-03-05)
1,075 reads
2012-03-05
3,073 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