How to rename XML node name in a SQL Server

Question

I have on my database a table with one column storing XML data. Due to changes in the source code we want to rename one specific XML node name and XML namespace. Lets say th

Answer 1

I don't know if this is possible with XML DML

It might work for you to use replace instead.

update YourTable set
  XMLCol = replace(replace(cast(XMLCol as nvarchar(max)), 
                           '<MediaClass xmlns="MediaClass/1">', 
                           '<Book xmlns="Book/1">'), 
                   '</MediaClass>', 
                   '</Book>')