Re: Complicated SQL

Jack C. Holt wrote:

> I have a database that contains diskspace needed for for various
> projects with start and stop date fields. I want to create one SQL
> statement that will return the sum of diskspace used by month for the
> next year.
>
> Can SQL do this and can you write me an example statement?

  It will be similar to the following:

  select sum(diskspace)
  from tablename
  group by to_char(startdate, 'mmyyyy')

  I assume your startdate and the stopdate lie on the same month and the same year. Otherwise, you cannot determine how much proportion of the diskspace used.

---
Name   : Lun Wing San
Title  : Oracle Application Developer of Hong Kong Productivity Council
         Oracle Database Administrator and System Administrator of QRC
Phone  : (852)27885841

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