title: Split one column into multiple (quantity and names unknown)
body: <p>Consider I have a table like this:
  <br><br>
  <strong>Example</strong></p>
  <pre><code>ID    Name    Something    Params
  -----------------------------------------
  1     First   A241FRT      P1=12, P2=One
  2     Second  G924PEM      P1=19
  3     Third   L9449TY      P1=94, P2=Two
  </code></pre>
  <p>I need to split column <code>Params</code> into multiple. So I need to get something like this:
  <br><br>
  <strong>Expected result</strong></p>
  <pre><code>ID    Name    Something    P1    P2
  -----------------------------------------
  1     First   A241FRT      12    One
  2     Second  G924PEM      19
  3     Third   L9449TY      94    Two
  </code></pre>
  <p>I don't know the names of extra columns as so as it's quantity. <br>
  I'm not really good at SQL, so I strongly need your help, thanks to everyone</p>