Hey All-- 
 

 Always such a great forum!!
 

 
 i’ve got a SQL question without using stored procedures
  
 this works:
  
 select o.ownername, p.location, 
 (select count(1) from reliefd r where r.plantkey=p.uniquekey) RV_Event_count,
 (select count(1) from cv c 
   where 
   c.plantkey=p.uniquekey and 
   upper(substring( c.manufacturer from 1 for 4))='MINE' ) CV_MINE_count
 from owners o, plants p
 where p.ownerkey = o.uniquekey
 order by
 rv_event_count desc
  
  
 (returns counts for each owner and plant)
  
 BUT I want to do some grouping by too 
  
 ie. group by year or yyyy/mm  (stored as text in the layout of YYYY/MM/DD  
it's NOT a TimeDate field)
  
 select  o.ownername, p.location, 
 substring( r.datetested from 1 for 4 ) as RVYear, count(1) as RV_Event_Count
 from plants p, reliefd r
 join owners o on p.ownerkey = o.uniquekey
 where r.plantkey = p.uniquekey
 and
 r.datetested=coalesce(r.datetested, '', null, ' ' )
 group by o.ownername, p.location, rvyear
 order by
 o.ownername
  
 

 this works, Owners, Plants and grouped by year with count in the year of 
records
  
  
 BUT what i want is the various count-of-rows columns based upon "where" 
clauses like the first  BUT  grouped
  
 this does NOT run... i cannot do the nested ( select ) in the group by??
  
 ie. what i want
 

 select o.ownername, p.location, substring( r.datetested from 1 for 4 ) as 
RVYear,
 ( select count(1)  from reliefd r 
   where 
   r.plantkey=p.uniquekey and 
   r.manufacturer=’The Manufacturer I want’) RV_Mfg_Event_count
 from plants p, reliefd r
 join owners o on p.ownerkey = o.uniquekey
 where r.plantkey = p.uniquekey
 and
 r.datetested=coalesce(r.datetested, '', null, ' ' )
 group by o.ownername, p.location, rvyear, RV_Mfg_Event_count
 order by
 o.ownername,
 rv_event_count desc
  
 somehow there has to be a way
  
  
 with derived tables?  subqueries?
  
 or 
  
 CTE (common table expressions)?
 

 any suggestions or things I shuold google?
 

 (yes, I've been trying for days to figure this out with google... my SQL isn't 
very strong)
 

 thanks
 kelly
 

 



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