Error : ERR_* = . ..

- SqlSeries (
              - Debit   <
                          CID : Sender
                          Sum : Amount
                        >,
                Credit  <
                          CID : Receiver
                          Sum : Amount
                        >,
                Journal < 
                          Opcode : JR_TRANSFER
                          CID_1  : Sender
                          CID_2  : Receiver
                          Amount : _     
                        >
            )
+ Ec, Error <>
  Log Error; Handle Ec
  ^/Error = Ec
;

If !Error then
 ...
Else
 ...
;