SQL SERVER cannot modify the table structure or column type.

SQL SERVER cannot modify the table structure or column type.

When using table structure design in SQL SERVER:

Note: you cannot save the changes. You must delete and recreate the following tables. You have made changes to tags that cannot be re-created or enabled the "change to prevent table re-creation after saving" option.

Solution:

Start mssql server 2008 and choose menu tool> Options> designer> Table Designer and database designer on the left. Then, remove the check box before "Preventing table creation changes due to saving. Restart mssql server 2008. As shown in:

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