What is the Program Data Vector (PDV) and What are its
functions?
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Answer Posted / vishnuvardhanreddy
when execute the programme it automatically creating the
input buffer .input buffer is a logical memory area .
Here it read the data.Then it enter into the pdv.Here it
scan the syntax .Here two automatic variables are created
for error checking.One is _n_ sas processing the
obeservatinos with no of itterations
_erroR_=no of error occurance.
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