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How to set 'is identity' to yes for incrementing id when rows of data already exist

Posted on 2011-09-13
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Last Modified: 2012-05-12
I have a table I imported from Access to SQL Server, it didn't recognise that the column named ID was a primary key column, nor that it was an incrementing identity column.

How do I set 'is identity' to yes for incrementing id when rows of data already exist in the table? When I do this in the tables design using SQL Server Express 2008 r2 it says:
'Saving changes not permitted. The changes you have made require the following tables to be dropped and re-created'!! ...it's a lot of tables and a lot of data, so I need a way of doing this quickly and efficiently.

Please help!

Thanks Experts.

/ Tobzzz

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Question by:tobzzz
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Lee Savidge earned 500 total points
ID: 36528420
Tools -> Options -> Designers -> Table and Database designers -> untick Prevent Saving changes that require table re-creation.
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by:tobzzz
ID: 36528789
Ah fantastic, thank you so much :-)
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Expert Comment

by:Lee Savidge
ID: 36528973
No probs. Its ticked by default in SQL 2008 and it's caught a lot of people by surprise including me :)

Lee
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