title: Web SQL insert data into multiple rows
body: <p>I've tried to insert variables into multiple rows at once in Web SQL database but with all known to me methods I'm getting errors:</p>
  
  <pre><code>("INSERT INTO tab (a,b) VALUES (?,?),(?,?)",[v1,v2,v3,v4])
  &gt;&gt; could not prepare statement (1 near ",": syntax error)
  
  ("INSERT INTO tab (a,b) VALUES (?,?,?,?)",[v1,v2,v3,v4])
  &gt;&gt; could not prepare statement (1 4 values for 2 columns)
  
  ("INSERT INTO tab (a,b) VALUES (?,?)",[v1,v2,v3,v4])
  &gt;&gt; number of '?' does not match arguments count
  </code></pre>
  
  <p>Which one is correct for Web SQL and where is my mistake?</p>