<dataupdate_command>
::=
DATAUPDATE TABLE <table_spec>
<acc_column_spec_mlt>
<set_column_spec_mlt>
<instream_spec>
[<longfile_spec_mlt>]
|UPDATE DATA TABLE <table_spec> <acc_column_spec_mlt>
<set_column_spec_mlt> <instream_spec>
[<longfile_spec_mlt>]