EDITPROCs and VALIDPROCs for handling basic and reordered row formats

If you write new edit and validation routines on tables with rows in basic row format (BRF) or reordered row format (RRF), make sure that EDITPROCs and VALIDPROCs are coded to check RFMTTYPE and handle both BRF and RRF formats.

If an EDITPROC or VALIDPROC handles only RRF, make sure that it checks RFMTTYPE and returns an error or warning if it detects BRF. If an EDITPROC or VALIDPROC that handles only BRF is to be used on tables in RRF, make sure that it checks RFMTTYPE and returns an error or warning if it detects RRF.