Update Single XML Node Value of XML Column using SQL Server

Question

I want to update single value of XML Node in SQl Server

Below is the table structure

XML Structure

<PayDetails>
  <Column Name="FG" DataType="float" Value="7241" />
  <Column Name="SKILL" DataType="float" Value="3" />
  <Column Name="PI" DataType="float" Value="87" />
  <Column Name="MD" DataType="float" Value="30" />
  <Column Name="LD" DataType="float" Value="4" />
  <Column Name="WEEKOFF_DAYS" DataType="float" Value="4" />   
  <Column Name="NETPAY" DataType="float" Value="5389" />    
</PayDetails>

I want to update value of FG from 7241 to 8000

Answer 1

You want to use replace value of...with keywords:

Try something like the following:

update tablename
set TransactionFieldDetails.modify(
'replace value of
(/PayDetails/Column[@Name="FG"]/@Value)[1]
with "8000"');