title: Update value in datatable from another datatable
body: <p>Is there any way to update value in one datatable from another datatable.</p>
  
  <p>For example lets say I have two datatables dt1 and dt2.</p>
  
  <p><img src="https://i.stack.imgur.com/QB8kr.png" alt="enter image description here"> <img src="https://i.stack.imgur.com/bxm7j.png" alt="enter image description here"></p>
  
  <p>As shown above, I have two datatable and I have to replace table_name column value in 1st datatable with the newtable_name column value from 2nd datatable with the mapping of table_name which is common in both the datatable.</p>