title: Insert into Table from multiple sources simultaneously - SQL Server
body: <p>I need to insert data to a table from <strong>4 different sources</strong>. Approx 2M rows <strong>per source</strong>.
  I'm doing it with 4 different <strong>procedures</strong> and I don't want to change it.</p>
  
  <p>Is there any problem in <strong>inserting</strong> it simultaneously?</p>
  
  <pre><code>Insert into TableA
  Select * 
  From  TableB
  
  Insert into TableA
  Select * 
  From  TableC
  
  Insert into TableA
  Select * 
  From  TableD
  
  Insert into TableA
  Select * 
  From  TableE
  </code></pre>
  
  <p>Appreciate your help!</p>