WikiDBA

In case of following

• Adding a new column to the middle of the table
  
• Dropping a column
  
• Changing column nullability
  
• Changing the order of the columns
  
• Changing the data type of a column
  

SSMS’s table designer may throw following error,

Saving changes is not permitted. The changes that you have made require the following tables to be dropped and re-created. You have either made changes to a table that can’t be re-created or enabled the option Prevent saving changes that require the table to be re-created.

This message problem occurs when the Prevent saving changes that require the table re-creation option is enabled, to resolve this, follow the steps as

Click the Tools menu, click Options, expand Designers, and then click Table and Database Designers. Select or clear the Prevent saving changes that require the table to be re-created check box.