public void setNull(String parameterName, int sqlType) throws SQLException {
      throw new SQLFeatureNotSupportedException(resBundle.handleGetObject("cachedrowsetimpl.featnotsupp").toString());
   }
Sets the designated parameter to SQL <code>NULL</code>.

<P><B>Note:</B> You must specify the parameter's SQL type.

@param parameterName the name of the parameter
@param sqlType the SQL type code defined in <code>java.sql.Types</code>
@exception SQLException if a database access error occurs or
this method is called on a closed <code>CallableStatement</code>
@exception SQLFeatureNotSupportedException if the JDBC driver does not support
this method
@since 1.4
src/main/java/org/replicadb/rowset/StreamingRowSetImpl.java