|SAS(r) Software Tips|
|Whenever you use keyed access to a dataset, via the KEY=
option of MODIFY, SET or MERGE, you get a PDV dump in the log if the key
does not exist in the table you are accessing.
However there are occasions when failure to find a record is NOT an
error, and the PDV dump can be very annoying in those situations. It is
simple to stop the PDV dump, just set _ERROR_ back to zero.
data test ;