RE: SQL - selecting issue -- MIDRANGE-L

I'm on 5.3

Michael Smith
iSeries.mySeries.


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
Sent: Wednesday, October 04, 2006 8:43 AM
To: Midrange Systems Technical Discussion
Subject: RE: SQL - selecting issue


Mike,

What version of OS/400 are you running?  The "with dups as" is a Common
Table Expression (CTE) and has been supported since v5r2 or so I
believe.

Try:
Select distinct premise, meter

From mike

Where meter in (select meter                                  
                from (select meter, count(distinct premise)   
                      from mike                               
                      group by meter                          
                      having count(distinct premise) > 1      
                     ) as dups                                
               )                                              


/* Testing on v5r4 */

select * from mike
PREMISE  SEQ   METER  
   X       1   9,999  
   X       2   9,999  
   Y       2   9,998  
   Y       1   9,998  
   Z       1   9,999  

*****************************************************
With dups as (select meter, count(distinct premise)   
              from mike                               
              group by meter                          
              having count(distinct premise) > 1      
             )                                        
Select distinct premise, meter

From mike

Where meter in (select meter from dups)               
PREMISE  METER 
   X     9,999 
   Z     9,999 
****************************************************
Select distinct premise, meter

From mike

Where meter in (select meter                                  
                from (select meter, count(distinct premise)   
                      from mike                               
                      group by meter                          
                      having count(distinct premise) > 1      
                     ) as dups                                
               )                                              
PREMISE  METER
   X     9,999
   Z     9,999

HTH,

Charles Wilt
--
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Smith, Mike
Sent: Wednesday, October 04, 2006 8:34 AM
To: Midrange Systems Technical Discussion
Subject: RE: SQL - selecting issue

2 things  
"With dups as".(I've never seen this before)   When I include this it
chokes running in STRSQL.  If I run
(select meter, count(distinct premise)
              from file
              group by meter
              having count(distinct premise) > 1 )

I get the list of meters attached to multiple premises.

I also need to include the premise. So that if meter 99999 is attached

to 3 premises, I want to know what those 3 premises were along with 
the meter#

Michael Smith
iSeries.mySeries.


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx 
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
Sent: Wednesday, October 04, 2006 8:21 AM
To: Midrange Systems Technical Discussion
Subject: RE: SQL - selecting issue


Corrected (and tested ;-)

With dups as (select meter, count(distinct premise)
              from file
              group by meter
              having count(distinct premise) > 1
             )
Select distinct premise, meter

From file

Where meter in (select meter from dups)

HTH,

Charles Wilt
--
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx 
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Smith, Mike
Sent: Wednesday, October 04, 2006 8:07 AM
To: midrange-l@xxxxxxxxxxxx
Subject: SQL - selecting issue

Given the following file 
Premise     Seq #           Meter
X           01              99999
X           02              99999
Y           01              99998
Y           02              99998
Z           01              99999

I would like to create an sql statement that will identify

different

premises with the same meter# To get a result of
X                           99999
Z                           99999

Premise X has the same meter twice, but since it is only 1

premise it

would only be counted once.

Can this be done?

Michael Smith
iSeries.mySeries.

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