How do I combine two queries (union all) into one row?

Question

I have a tricky situation in trying to get information from multiple queries into a single row.

Consider the following table:

CpuUage:
    Time    ti         


        

Answer 1

I don't understand the problem with sub-querying, it seems like it should be just as fast:

select
    sub.gn as groupname,
    sum(sub.nj) as NormJobs, sum(sun.nc) as NormCpu,
    sum(sub.sj) as Sys7Jobs, sum(sub.sc) as Sys7Cpu
  from (
      select
          groupname as gn,
          sum(jobs) as nj, sum(cpu) as nc,
          0 as sj, 0 as sc
        from tbl
          where subsys = 'NORM'
          group by groupname
        union all select
            groupname as gn,
            0 as nj, 0 as nc,
            sum(jobs) as sj, sum(cpu) as sc
          from tbl
          where subsys = 'SYS7'
          group by groupname
    ) as sub
    group by sub.gn
    order by 1