Question

How would I insert a value into a column based upon the result of a simple join condition on two tables?

I have managed to do this for an UPDATE, but not an INSERT because all the values are comma-separated together.

Answer 1

with expr(a,b) as (
   select t.val, u.val 
    from (values(0,1)) as t(id,val) 
     join (values(0,2)) as u(id,val)
      on t.id = u.id
) insert into table(column) select a as vals from expr union all select b from expr