For compatibility with other MultiValue systems, the READPREV statement will accept the following syntax variant.
READPREV KEY key-var{,itemid-var{,vmc-var{,svmc-var}}} FROM [indexSelectVar || listNumber] {SETTING setting-var} {[THEN statement(s) | ELSE statement(s)]}
For parameter details, refer to the main description of the READPREV statement.