if load

[farolito20]

I have a table with a column call MostRecent, and I have two types of load:

if exist a row with MostRecent=1, I need this load

LOAD

  t_bpid,

  t_nama,

  t_ccur,

  ValidFrom,

  ValidTill,

  Checksum,

  MostRecent

  Resident DimOld

  Where exists (Checksum2, Checksum) and t_bpid = $(vCustomerNumber) and MostRecent=1;

but, if not exist a row with MostRecent=1, i need just one row with MostRecent=0 and execute this load.

LOAD

                    t_bpid,

                     t_nama,

                     t_ccur,

                    date(now()) as ValidFrom,

                    Timestamp#('31-12-2099 08:00:00','DD-MM-YYYY hh:mm:ss')          as ValidTill,

                    Checksum,

                    1 as MostRecent

          Resident DimOld

          Where exists (Checksum2, Checksum) and t_bpid = $(vCustomerNumber) and MostRecent=0;

I cannot execute both at the same time