title: Why Auto_Increment not working in SQL?
body: <pre><code>CREATE TABLE Persons 
  (
      ID int NOT NULL AUTO_INCREMENT,
      LastName varchar(255) NOT NULL,
      FirstName varchar(255),
      Age int,
      PRIMARY KEY (ID)
  );
  </code></pre>
  
  <p>When I run this code, it is not run successfully.</p>