How can I replace all key fields in a string with replacement values from a table in T-SQL?

Question

I have a table like:

 TemplateBody
 ---------------------------------------------------------------------
 1.This is To inform #FirstName# about the issues r         


        

Answer 1

As long as the values for the Variables are unique ('#FirstName#' etc.) you can join each variable to the table containing TemplateBody:

select replace(replace(t.TemplateBody,'#FirstName#',variable.theVariable),'#Location#',variable2.theVariable)
from
[TemplateBodyTable] t
left join
(
select TemplateValues theVariable,Variables
from [VariablesTable] v
) variable on variable.Variables='#FirstName#'
left join
(
select TemplateValues theVariable,Variables
from [VariablesTable] v
) variable2 on variable2.Variables='#Location#'