title: Duplicate entry '0' for key 'PRIMARY'
body: <p>I don't understand why I'm getting this error when trying to populate this table. There is nothing in the table at the moment so I don't understand why there would be a duplicate...</p>
  <p>This is the code I'm using:</p>
  <pre><code>INSERT INTO Suppliers
  (supp_id,company_name,town,phone)
  Values
  (&quot;ADT217&quot;,&quot;AdTec&quot;,&quot;Birmingham&quot;,&quot;0121-368-1597&quot;),
  (&quot;CPS533&quot;,&quot;CPS&quot;,&quot;Maidenhead&quot;,&quot;01382-893715&quot;),
  (&quot;FCL162&quot;,&quot;ForComp Ltd&quot;,&quot;Nottingham&quot;,&quot;01489-133722&quot;),
  (&quot;KBC355&quot;,&quot;KBC Computers&quot;,&quot;Glasgow&quot;,&quot;0141-321-1497&quot;);
  </code></pre>
  <p><strong>suppliers table...</strong></p>
  <pre><code>CREATE TABLE suppliers(
      supp_id int NOT NULL,
      company_name character(15) NOT NULL,
      town character(15)
      phone character(15)
  primary key(supp_id)
  );
  </code></pre>