title: DB2 for IBM i: Missing sql_function
body: <p>A customer cannot use the offset-clause
  (<a href="https://www.ibm.com/docs/en/i/7.2?topic=subselect-offset-clause" rel="nofollow noreferrer">https://www.ibm.com/docs/en/i/7.2?topic=subselect-offset-clause</a>), although having V7R2.</p>
  <p>My guess is that the sql_function isn't installed.</p>
  <p>Is there a way a view to check for installed system functions ?</p>
  <p>And how can you install the function/sql_package ?</p>