title: TSQL RAISERROR as warning
body: <p>I'm looking through questions for Microsoft's 70-761 exam and I came across a troublesome one. The question asks to 'produce a <strong>warning</strong> if '.</p>
  
  <p>It seems obvious that I should use <code>RAISERROR</code> (or <code>THROW</code>) statement. My question is - what severity should I use to fulfill this requirement? </p>
  
  <p>I'm aware that 16 is default for <code>THROW</code>, but I hesitate to call it a warning. Maybe <code>RAISERROR</code> with severity set to 10 would be more appropriate? </p>