SQL 2005 Export Data

blandyuk
blandyuk used Ask the Experts™
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Hi Experts,

I have a problem where I'm trying to export data from a SQL 2000 box to my new SQL 2005 box. I've scripted all the tables / views / stored procedures / full text catalogues etc, no problems. When Exporting the data, it all transfers across fine but the uniqie ID's are changed. An example would be:

SQL 2000 DB
Table: tblUsers
UserID: 4
Username: Joe
Password: letmein
-----------------------------------------
SQL 2005 DB
Table: tblUsers
UserID: 1
Username: Joe
Password: letmein

As you can see, the UserID has changed for this user which doesn't help as you can imagine :/ This goes for all my tables. I've tried the "Database Copy" wizard but that doesn't work at all. I prefer to use the Data Export / Import anyway. Also, I don't have "Enable Identity Insert" enabled when transfering the tables.

Ta.
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Top Expert 2012

Commented:
>>Also, I don't have "Enable Identity Insert" enabled when transfering the tables.<<
You will need to enabe this check box and include the Identity column in the transform.

Author

Commented:
I don't know what you mean by:
"and include the Identity column in the transform"

?? I include all columns in the transform. I've tried it with "Enable Identity Insert" with no luck :(

Author

Commented:
I found this article which is exactly the problem I'm having but I'm still having trouble as to what exactly I'm surposed to do:

------------------

>Question:<
I have a question regarding export / import when you have tables with  autonumber (identity) columns as primary surrogate keys. Does export / import retiain the values of these columns so that referential integriy is not broken?

>Answer:<
Yes!
Depending on how you import the data, make sure you choose the correct option that you wish to explicitely insert your "own values" into an IDENTITY column.
You might want to check BOL for SET IDENTITY_INSERT or BULK INSERT...KEEPIDENTITY or BCP -E. There is also some equivalent when you use DTS, but since I don't use DTS, I don't know what option to check there.

>Reference:<
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=78716&SiteID=1
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Hi blandyuk,

restoring a 2000 backup into the 2005 db is the easyest way to do this ( remember to change the compat level to 90 when done )

blandyuk,
> I don't know what you mean by:
> "and include the Identity column in the transform"

this means when it is not enabled new id's will be generated resulting in the behaviour you saw when it is enabled you (or the import process ) can assign the id a value from the exsisting data

HTH

R.


Author

Commented:
Found another article:

>Article:<
Enable identity insert is ignored when "optimize for multiple tables" is enabled. Unfortunately that option ensures that the import operation observes referential integrity between foreign key connected tables according to this blog: http://blogs.msdn.com/chrissk/archive/2006/06/24/645968.aspx.

Very, very, annoying.

>Reference:<
http://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=135905

Yeah, I'll have to restore it from a backup when I do it. I've already done this and I know it works. I've tried copying data without the "optimize for multiple tables" and it totally fails.

Ah well!
Top Expert 2012

Commented:
Sorry, I misunderstood the quesiton, I thought you were using DTS, I see now that it is SSIS that you are using.

Author

Commented:
Thanks regbes, I've just been creating a backup and restoring that now. I would have thought SQL 2005 Management Studio would have made is easy to transfer a database :/ It's easy in Enterprise Manager.

Doesn't matter anyway, sorted now.

Blandy

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