Issue Using SQL Replace Function with Variable - sql

Question

Essentially, I'm trying to loop through the contents of #sprocs variable, implement the replace function, and print the respective changes. When I execute the code, the #spname variable is printed off, just not with the expected result.
declare #sprocs cursor
declare #spname nvarchar(max)
set #sprocs = cursor for
select ROUTINE_DEFINITION
from INFORMATION_SCHEMA.ROUTINES
where ROUTINE_TYPE = 'Procedure' AND
ROUTINE_DEFINITION like '%someString%'
open #sprocs
fetch next from #sprocs into #spname
while ##FETCH_STATUS = 0
Begin
set #spname = replace(#spname, '%someString%', 'Hello')
print #spname
fetch next from #sprocs into #spname
end
Expected result would look like this:
Before
Lorem ipsum dolor sit amet, someString adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco someString nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. someString sint occaecat cupidatat non someString, sunt in culpa qui officia deserunt mollit anim id est laborum.
After
Lorem ipsum dolor sit amet, Hello adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco Hello nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Hello sint occaecat cupidatat non Hello, sunt in culpa qui officia deserunt mollit anim id est laborum.
I thought - initially - that is might be an issue with #spname variable type, but since it's declared as an nvarchar(max), I can't see that being the issue.
What's preventing the expected print out?

Answer 1

In addition to not using wildcards in your searchstring, you also really don't need a cursor for this. SQL works on the basis of data sets and applies anything you do in a standard select statement to all rows that are returned.
In light of this, your statement should just be:
select ROUTINE_DEFINITION
,replace(ROUTINE_DEFINITION,'someString','Hello') as ReplacedValues
from INFORMATION_SCHEMA.ROUTINES
where ROUTINE_TYPE = 'Procedure'
and ROUTINE_DEFINITION like '%someString%'
which will apply the replace function to each and every value of ROUTINE_DEFINITION returned by the query.