Question

I am having a question i.e when i tried to alter a data type of a table by query or by modifying the data type directly i used to get some errors stating this can not be done. But where as if i open the same table in server explorer from visual studio and modify the data type it was easily done with out any errors.

I tried to modify the primary key which is a foreign key for some tables from data type int to varchar using Management Studio it throw me some errors.

But the same thing when i done through Server explorer from Visual Studio it was done in a fraction.

Can any one tell what was the difference

Answer 1

I think I had this issue (at least with sql server 2008):

• Take a look at Tools->Options->Designers.
• uncheck “Prevent saving changes that require table re-creation”
  and try again.

You can see more info here about when it occurs if the option is checked.