title: What does this error message mean? ORA-00907: missing right parenthesis
body: <p>I am writing my SQL statements in Oracle Application Express and keep getting the error message ORA-00907: missing right parenthesis. Below is the code that I have written to create a table.</p>
  <pre><code>CREATE TABLE book
    (
       book_isbn   CHAR(13),
       book_name   VARCHAR(20),
       book_author VARCHAR(20),
       book_pages  CHAR(4),
       book_price  NUM(4, 2),
       PRIMARY KEY(book_isbn)
    ); 
  </code></pre>