XML DML for 2008 R2..How to modify nested Elements

Question

      
          2 7/8\" x 1\",Drill Collar,2 3/8 PAC
          2 7/8\" x 1\",Drill Collar,2 3/8 P         


        

Answer 1

You can only insert into one place in the XML at a time so you need to do it in a loop.

Update the nodes one at at time and exit the loop when there where no updates made.

declare @MaxFeatures xml

set @MaxFeatures = N'<MaxAllowableTorque>0</MaxAllowableTorque>
                     <MaxAllowableForce>0</MaxAllowableForce>'   

declare @I int 
set @I = 1

while 1 = 1
begin
  update Component
  set XMLDetails.modify('       
      insert sql:variable("@MaxFeatures")           
      after ((/Component/Sections/Section/Length)[sql:variable("@I")])[1]')
  where XMLDetails.exist('(/Component/Sections/Section/Length)[sql:variable("@I")]') = 1

  if @@rowcount = 0
    break

  set @I = @I + 1
end