SQL$HELP_OLD72.HLB

  case-searched-statement =

  CASE -----+--> WHEN -> predicate -> THEN -----+
            |  +--------------------------------+
            |  +-+-> compound-use-statement -+-++
            |    +------------ <-------------+ ||
            +----------------- <---------------+|
    +-------------------------------------------+
    +-+--------------------------------------+--> END CASE -->
      +-> ELSE -+-> compound-use-statement -++
                +------------- <------------+