title: ORA-00910: specified length too long for its datatype
body: <p>I have a column in Oracle to store comments of <code>Nvarchar2(2000)</code>. When a user tries to enter beyond 2000 characters, I get the following error:</p>
  
  <pre><code>ORA-00910: specified length too long for its datatype.
  </code></pre>
  
  <p>The <code>NLS_NCHAR_CHARACTERSET</code> parameter is having <code>AL16UTF16</code> value.</p>
  
  <p>Is there any way to increase the size to accept up to 6000 characters? My column already has lots of contents, so not sure if I will be able to change the datatype from <code>NVarchar(2000)</code> to any other.</p>