title: Imported user IDs and primary key?
body: <p>I'm designing a SQL table that should hold the client data.</p>
  
  <p>The client data is exported from another system and already contains a <code>client_ID</code> that I need to integrate into my client table.</p>
  
  <p>My question is: If I put an exported <code>client_ID</code> as a primary key and import the data, how should I auto increment the <code>client_ID</code> on consecutive table inserts by my system? </p>
  
  <p>How should I eliminate the overlap of the client IDs?</p>