Haidong Ji

I was a developer, working with VB, SQL Server, Access and lots of other Microsoft stuff.

I am currently a SQL Server DBA in my company in the Chicago area.

I am MCSD and MCDBA certified. In my spare time, if I have any, I like to do Linux, C and other open source project.

I can be reached at Happy_Haidong@yahoo.com

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SQLServerCentral Article

Using Different Techniques for SQL Server Automation

Automating SQL Server tasks is the sign of an experienced DBA. One who doesn't waste time on repetitive tasks that can be easily setup in a job, task, or some other scheduling process to run when they need to run. Haidong Ji has written a number of articles on how to perform automation and brings us yet another technique. This time he looks at managing your backup files, something that we all need to do, but all too often forget to do.

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2004-08-02

17,406 reads

SQLServerCentral Article

Comparison of Oracle Drivers

Oracle is usually a dirty word in the SQL Server community, but like it or not, lots of data resides in Oracle databases. And SQL Server is often used to gather this data together in a warehouse of some sort for spinning cubes, generating reports, etc. Haidong Ji looks at the various methods that you can connect to an Oracle driver and compares the speed of each. If you need to get data from Oracle, or may need to, this is the place you want to start.

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2004-07-21

16,795 reads

SQLServerCentral Article

Automate DTS Logging

DTS logging is a pretty handy feature - if you've got it enabled. Got lots of packages and want to turn it on for all of them? Thats a lot of point and click using EM, but with the code Haidong has put together, it's a snap. Other possibilities to this code as well. After all, it uses a DTS package to modify other DTS packages.

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2003-09-09

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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  2025-01-16
The 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?

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