Increment a counter each time a missing value is encountered usin sql sas r python excel %let pgm=utl-increment-a-counter-each-time-a-missing-value-is-encountered-usin-sql-sas-r-python-excel; ...

You can also use the power of the SQL language to subset your data prior to processing it. This saves memory when you have a large view, but need to select only a small portion of the data contained ...