Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

What does this T-SQL statement do exactly?

Posted on 2007-11-26
2
Medium Priority
?
647 Views
Last Modified: 2008-02-01
select 'DBCC CHECKIDENT ('+''''+OBJECT_NAME(OBJECT_ID)+''''+',RESEED,'+convert(varchar(15), seed_value)+')' FROM SYS.IDENTITY_COLUMNS
0
Comment
Question by:ksfok
2 Comments
 
LVL 15

Accepted Solution

by:
dbbishop earned 750 total points
ID: 20354515
Not certain what the purpose is. It is generating a string that is executing DBCC CHECKIDENT for the identity column, and the RESEED option sets the seed back to whatever the original value was. However, as written, this only displays the string. The normal syntax for something like this would be:

DECLARE @SQL VARCHAR(8000)
SELECT @SQL = 'DBCC CHECKIDENT ('+''''+OBJECT_NAME(OBJECT_ID)+...

EXEC(@SQL)
0
 
LVL 25

Assisted Solution

by:imitchie
imitchie earned 750 total points
ID: 20355305
it looks like code to reset a test (or demo) database to a known state (reseeded auto increment numbers).  the code is generated, so that an administrator and eyeball it before running it.  A sample output would be

DBCC CHECKIDENT ('UniqueKeyHolderForSomeStoredProc',RESEED,1)
DBCC CHECKIDENT ('table_1_1977058079',RESEED,0)
DBCC CHECKIDENT ('table_1_2009058193',RESEED,0)
DBCC CHECKIDENT ('table_3_2041058307',RESEED,1001)
etc.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article we will learn how to fix  “Cannot install SQL Server 2014 Service Pack 2: Unable to install windows installer msi file” error ?
Windocks is an independent port of Docker's open source to Windows.   This article introduces the use of SQL Server in containers, with integrated support of SQL Server database cloning.
Via a live example, show how to setup several different housekeeping processes for a SQL Server.
Viewers will learn how to use the UPDATE and DELETE statements to change or remove existing data from their tables. Make a table: Update a specific column given a specific row using the UPDATE statement: Remove a set of values using the DELETE s…
Suggested Courses

564 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question