title: SQL Syntax error in FROM clause
body: <p>Here is the code I'm running into an error with:</p>
  
  <pre><code>FROM
      IndexPID
      INNER JOIN Demographics ON
          IndexPID.NDoc_Number = Demographics.NDoc_Number,
      PatientSupply
      INNER JOIN Demographics ON
          PatientSupply.NDocNum = Demographics.NDoc_Number
  </code></pre>
  
  <p>I also tried it this way:</p>
  
  <pre><code>FROM
      IndexPID, PatientSupply
      INNER JOIN Demographics ON
          IndexPID.NDoc_Number = Demographics.NDoc_Number
      INNER JOIN Demographics ON
          PatientSupply.NDocNum = Demographics.NDoc_Number
  </code></pre>
  
  <p>But no cigar. Anybody tell me what I'm doing wrong?</p>