By David Postlethwaite
At my presentation on SQL Server Management Studio at SQL Saturday in Exeter I promised to write some articles on Gethyn’s blog about the bits I didn’t manage to cover.
You may have come across this error message when using SQL Server Management Studio
It’s new in SSMS 2008.
You cannot, by default, make changes to a table that will require it to be dropped and re-created.
These changes are
Changing data type on existing columns
Or changing allow nulls on existing columns
Or changing order of columns
But you can turn this behaviour off
Tools Menu -> Options -> Designers
Untick "prevent saving changes that require table re-creation"
If it is a table with large amount of data it could take some time to copy it from the old to the new table