I am trying to use count (distinct) in order to count the number of distinct values for two different values in the same table. The output I am trying to get should have both of the distinct values as two separate columns. I have been trying different methods but I keep on getting syntax errors. I am able to to count just one of the values without any problem, but I can not figure out the syntax for two.
For example, I can count one by executing:
select count(distinct origin) as distinctOrigin from flights;
But I want to do something along the lines of this:
select count(distinct origin) as distinctOrigin and select count(distinct dest) as distinctDestination from flights;
And get two output values as two separate columns.
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Answer
Can’t you just have two expressions in the select?
select count(distinct origin) as distinctOrigin,
count(distinct dest) as distinctDest
from flights ;