I am working on a data migration project using a pre-made SQL 2005 database. We need to migrate data to over 300 different talbes and the records number 20 million plus for some of the tables.
We need to be able to insert values into multiple identity columns, so therefore - SET IDENTITY_INSERT ON/OFF
wont work.
We can't simply use the interface either as it means that a miss click or a moment of absent mindedness can cause a world of problems. It simply leaves room for too much human error.
We are working towards a transact SQL script that will disable the IDENTITY and allow us to simply add it again.
The add is not a problem, since we can just use ALTER TABLE for that.
I have seen good code that addresses our issue, but it relies on deleting the foreign key constraints on the table. Unfortunately this is not an option as the referential integrity on the database is quite intricate to say the least and introduces too much human error once again.
Is there a way to remove/drop the IDENTITY on the column without losing the foreign keys?
1  6859 
I am working on a data migration project using a pre-made SQL 2005 database. We need to migrate data to over 300 different talbes and the records number 20 million plus for some of the tables.
We need to be able to insert values into multiple identity columns, so therefore - SET IDENTITY_INSERT ON/OFF
wont work.
We can't simply use the interface either as it means that a miss click or a moment of absent mindedness can cause a world of problems. It simply leaves room for too much human error.
We are working towards a transact SQL script that will disable the IDENTITY and allow us to simply add it again.
The add is not a problem, since we can just use ALTER TABLE for that.
I have seen good code that addresses our issue, but it relies on deleting the foreign key constraints on the table. Unfortunately this is not an option as the referential integrity on the database is quite intricate to say the least and introduces too much human error once again.
Is there a way to remove/drop the IDENTITY on the column without losing the foreign keys?
From the ALTER TABLE statement syntax, it looks like dropping IDENTITY cannot be done: http://technet.microsoft.com/en-us/l.../ms174123.aspx Sign in to post your reply or Sign up for a free account.
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