-10503: The operation is not allowed for result set type FORWARD_ONLY

Explanation:

The method that was called cannot be executed, because the result table type is FORWARD_ONLY. Position specifications for result tables are only permitted for result tables whose type is SCROLL_SENSITIVE or SCROLL_INSENSITIVE.

User Action:

Use the SQLDBC_PreparedStatement::setResultSetType method to change the result table type to SCROLL_SENSITIVE or SCROLL_INSENSITIVE.