The CREATE TABLE statement creates the table FLIGHTS from the output
of the query. The SELECT clause selects the unique values of Dest. DISTINCT
specifies that only one row for each value of city be returned by the query
and stored in the table FLIGHTS. The FROM clause specifies PROCLIB.MARCH as
the table to select from.
proc sql;
create table flights as
select distinct dest
from proclib.march;
title 'Cities Serviced by the Airline';