||Returns TRUE if one row (or more, in the case of BULK COLLECT INTO) was fetched successfully, and FALSE otherwise (in which case the database will also raise the NO_DATA_FOUND exception).
|| Returns TRUE if a row was not fetched successfully (in which case the database will also raise the NO_DATA_FOUND exception), and FALSE otherwise.
||Returns the number of rows fetched from the specified cursor thus far. For a SELECT INTO, this will be 1 if a row was found and 0 if the database raises the NO_DATA_FOUND exception.
||Always returns FALSE for implicit cursors because the database opens and closes implicit cursors automatically.