 <p>To eliminate connection problems, if you remove the restriction on date from the <code>WHERE</code> clause, does it return any data in vb.net?</p> <p>If so, it's most likely a date string parsing issue. Check the NLS settings on the server, or try using a language agnostic date format like this: </p> <pre><code>and created_dttm &gt;= TO_DATE('20120221', 'YYYYMMDD'); </code></pre> <p>If removing the date results in no data being returned, it is almost certainly not a problem with your query, but a problem with the connection to the database. Is it connecting to the same schema as from SQL Developer?</p>