SQL Server table identity field configuration

Hi there!

After using "sp_rename" in certain tables, copying another one (say <new>) "over" the original one (say <old>) , renaming again, etc, I created a "PK_Temp" Key in the <new>ly created one because I guess I did not created two identical tables, at first, as I should.

Well, everything looks ok, with the first column defined as UserID (PK, int, not null) by the way.

Question: why should I create an INSERT procedure WITH the UserID number as one of the VALUE fields, if (as an identity and key-related field) it should create the UserID automatically?

In other words, could you please tell what property should I check (probably alter) so that the identity field continues the behavior it had in the past, previously to the whole renaming and copying over stuff?

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Brian CroweDatabase AdministratorCommented:
You cannot add the IDENTITY property to an existing column.  You will have to recreate either the column or the table.

You could add a new column with the IDENTITY property, enable IDENTITY_INSERT, and then copy the values over from the existing column, disable IDENTITY_INSERT, and delete the old column or you could create a new table with the correct schema and copy the data over.

Here is a link that might explain it in a little more detail.


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fskilnikAuthor Commented:
Hi, Brian!

Got it. Thanks for the info and for the link.

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Microsoft SQL Server 2008

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