xpxIsSubtypeOfBN

 
SYNTAX:
 
xpxIsSubtypeOfBN(schemaName, subtypeEntityName, supertypeEntityName : STRING;
                 VAR isSubtype                                      : BOOLEAN)
                 status                                             : INTEGER;
 
The xpxIsSubtypeOfBN function returns TRUE in the isSubtype argument if the specified entity subtypeEntityName is a subtype of the specified supertypeEntityName in the specified Express schema schemaName, else FALSE is returned.
 
This function is equivalent to the EDMinterface^ function sdaiIsSubtypeOfBN