RE: Need help with SQL query

Hi,

try the following:

With x as (Select Name, Year, Make, Date, Sym, 
                  Date concat Sym as Combined
              from MyTable),
     y as (Select Name, Year, Make, Max(Combined) as MaxCombined
              from x
              group by Name, Year, Make)
select x.Name, x.Year, x.Make, x.Date, x.Sym
   from x inner join y 
     on x.Name = y.Name and x.Year = y.Year and x.Make = y.Make and
        Combined = MaxCombined

In the example above, Date and Sym are concatenated together to built a
single field. If one or both of the fields are not Char you have to convert
them into CHAR.

In an second CTE the maximum value for Name, Year, Make is determined.

In the final select statement both CTEs are joined over the keys and the
combined field, to return only the rows with the maximum values.

Birgitta                 
 

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of John Candidi
Sent: Monday, December 11, 2006 15:31
To: 'Midrange Systems Technical Discussion'
Subject: RE: Need help with SQL query

SELECT A.A8FYCD, A.A8HFCD, A.A8E6TX,  max(A.A8IONB)max_edition_date,
B.MAXSYMBOL

 FROM Library.File AS A 

 INNER JOIN 

     (SELECT A8FYCD, A8HFCD, A8E6TX, MAX(A8ALIFTE) AS MAXSYMBOL,

A8IONB FROM Library.file GROUP BY A8FYCD, A8HFCD,A8E6TX,A8IONB) AS B

  ON A.A8FYCD = B.A8FYCD AND A.A8HFCD = B.A8HFCD AND

 A.A8E6TX = B.A8E6TX AND A.A8IONB = B.A8IONB

GROUP BY A.A8FYCD, A.A8HFCD,A.A8E6TX,A.A8IONB,B.MAXSYMBOL

ORDER BY A.A8FYCD asc, A.A8HFCD,A.A8E6TX,A.A8IONB,B.MAXSYMBOL

 

 

Returns from the table

 

Name Year   make  Date  Sym

Acur  00    3.2TL blank 18

Acur  00    3.2TL 1000  15

 

The above gets me 2 lines like the sample output above. I just want to
return that 2nd line from above which is the highest date (1000) and the
highest symbol associated with that date. Below is sample of the db 

 

Name Year   make  Date  Sym

Acur  00    3.2TL blank 18

Acur  00    3.2TL blank 17

Acur  00    3.2TL 1000  15

Acur  00    3.2Tl blank 14 

 

 

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Mark Adkins
Sent: Friday, December 08, 2006 11:13 AM
To: midrange-l@xxxxxxxxxxxx
Subject: RE: Need help with SQL query

 

Here is another solution.  It is pretty elegant IMO:

 

SELECT A.FNAME, A.LNAME, MAX(A.AGE), B.MAXSALARY

FROM TABLE AS A 

 INNER JOIN 

     (SELECT FNAME, LNAME, MAX(SALARY) AS MAXSALARY

      FROM TABLE GROUP BY FNAME, LNAME) AS B

  ON A.FNAME = A.FNAME AND A.LNAME = B.LNAME AND

     A.SALARY = B.MAXSALRY

GROUP BY A.FNAME, A.LNAME

 

Mark