title: I have to write an SQL statement to create a table skill using DDL commands. the field description can be NULL and the default value is NULL
body: <pre><code>CREATE TABLE skill
  (
    id BIGINT(20),
    description VARCHAR(255) DEFAULT NULL,
    name VARCHAR(255),
    PRIMARY KEY(id)
  );
  </code></pre>
  
  <p>The portal says wrong answer. I don't understand what is wrong in this code.
  After execution, it says'0 rows affected'.</p>