Changing user defined data type's data type

Hi,

I have a user defined data type which is called DEmployeeName,

it's length is varchar(20), how do i change it into varchar(30) without droping it?

I'm using SQL server 2005.

Thanks in advance.. You will have to remove all references to change it.

HTH; jens Suessmeyer.

http://www.sqlserver2005.de