Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

query syntax

Posted on 2015-02-23
3
Medium Priority
?
62 Views
Last Modified: 2015-03-04
So now a follow up to a previous question!

I have the following query which i have grouped the measurements in to years and ranges.

PersonId is the identity of the patient.  Undersokningsdatum is a date, and U1MaximalIRAPDiameter is a measurement.

 What i really need now is to make sure i get all the empty rows.  That is for all the years i am interested in and for all the ranges.  How can i do that?

 with cte as(
 select
       PersonId , Undersokningsdatum , U1MaximalIRAPDiameter
 from (
       select
             PersonId , Undersokningsdatum , U1MaximalIRAPDiameter
           , ROW_NUMBER() OVER (PARTITION BY PersonId ORDER BY Undersokningsdatum DESC) AS RN
       from (
             select PersonId , Undersokningsdatum , U1MaximalIRAPDiameter
             from SweAAABas where Approved = 1 and U1Data = 1 and U1MaximalIRAPDiameter is not null
             union ALL
             select PersonId , Undersokningsdatum , U1MaximalIRAPDiameter
             from SweAAAFollowUp where Approved = 1 and U1Data = 1 and U1MaximalIRAPDiameter is not null
             ) AS SQA
       ) AS SQB
 where rn = 1
 )


 select 
   Year(t.Undersokningsdatum) as År,
   t.Aneurys as [Aneurys],
   count(t.Aneurys) as [Antal]
 from 
 (
   select Undersokningsdatum,
     case 
     when U1MaximalIRAPDiameter < 25 then '<25'
     when U1MaximalIRAPDiameter < 30 then '<30' 
     when U1MaximalIRAPDiameter < 35 then '<35' 
     when U1MaximalIRAPDiameter < 40 then '<40' 
     when U1MaximalIRAPDiameter < 45 then '<45' 
     when U1MaximalIRAPDiameter < 50 then '<50' 
     when U1MaximalIRAPDiameter < 55 then '<55' 
       else '>=55' end as Aneurys 
   from cte) t 
   
 group by  t.Aneurys, Year(Undersokningsdatum)
 order by  Year(Undersokningsdatum), t.Aneurys

Open in new window

0
Comment
Question by:soozh
  • 2
3 Comments
 
LVL 49

Expert Comment

by:PortletPaul
ID: 40626934
Is there a table with ALL [PersonId] values, but only one row for each?
0
 
LVL 49

Accepted Solution

by:
PortletPaul earned 2000 total points
ID: 40627227
To produce a result that has every year for every person requires a cross join (Cartesian product).

let's assume
1. the range of years is 2013, 2014, 2015
2. the table [Persons] exists with a single row per person

then the overall query would look like this:

SELECT ... (list the columns)
FROM [Persons] AS P
CROSS JOIN  ( select 2013 as yr union all select 2014 union all select 2015 ) AS YRS
LEFT JOIN (
                      the query in the question here
                )  AS Q1
                   ON P.ID = Q1.personid AND yrs.yr = Q1.År

----------
If you do not have the equivalent of the assumed [Persons] table you could use a CTE of derived table instead e.g.

select distinct personid from [some-table-or-cte-here]

-----
If the range of years needed isn't known in advance that could also be made more flexible (e.g. by a recursive CTE).
If flexibility is not required just using constants and union all is fine.
0
 
LVL 53

Expert Comment

by:Vitor Montalvão
ID: 40639273
soozh, you still have the issue or it's already solved?
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Use this article to create a batch file to backup a Microsoft SQL Server database to a Windows folder.  The folder can be on the local hard drive or on a network share.  This batch file will query the SQL server to get the current date & time and wi…
Recursive SQL is one of the most fascinating and powerful and yet dangerous feature offered in many modern databases today using a Common Table Expression (CTE) first introduced in the ANSI SQL 99 standard. The first implementations of CTE began ap…
Is your data getting by on basic protection measures? In today’s climate of debilitating malware and ransomware—like WannaCry—that may not be enough. You need to establish more than basics, like a recovery plan that protects both data and endpoints.…
With just a little bit of  SQL and VBA, many doors open to cool things like synchronize a list box to display data relevant to other information on a form.  If you have never written code or looked at an SQL statement before, no problem! ...  give i…

580 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question