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MS Access Sum Query- need a 0 return

I have the following query below. The items are listed by Grouping, there is 4 possible groupings. i am attempted to sum up SumOfCC_CostEstimate by Grouping. The count query works fine for each item that has least onc record, but ignores records where there is not matches.

I want to dislay all the possible groups, and if there is no records I want to show 0 in the SumOfCC_CostEstimate, in my example thewre is no records matching ProjectDisposition="On-Hold" and tblProjects.NLG)=Yes. I want to disaply

ProjectDisposition        SumOfCC_CostEstimate
Cancelled        128000
Completed        30000
Pending ITSC approval/prioritization      130000
On-Hold 0 ' This is missing

SELECT tblProjects.ProjectDisposition, Sum(tblSizing.CC_CostEstimate) AS SumOfCC_CostEstimate
FROM (tblProjects LEFT JOIN tLUProjectStatus ON tblProjects.ProjectDisposition = tLUProjectStatus.DispositionDescription) LEFT JOIN tblSizing ON tblProjects.PID = tblSizing.PID
WHERE (((tblProjects.NLG)=Yes)) OR (((tblProjects.NLG)=Yes)) OR (((tblProjects.NLG)=Yes)) OR (((tblProjects.NLG)=Yes))
GROUP BY tblProjects.ProjectDisposition
HAVING (((tblProjects.ProjectDisposition)="Pending ITSC approval/prioritization")) OR (((tblProjects.ProjectDisposition)="Completed")) OR (((tblProjects.ProjectDisposition)="Cancelled")) OR (((tblProjects.ProjectDisposition)="On-Hold"));

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Terry Woods

Might not be pretty, but this should work:

select ProjectDisposition, iif(isnull(SumOfCC_CostEstimate),0,SumOfCC_CostEstimate)
from (
SELECT tblProjects.ProjectDisposition,
       Sum(tblSizing.CC_CostEstimate) AS SumOfCC_CostEstimate
FROM tblProjects 
     LEFT JOIN tLUProjectStatus ON tblProjects.ProjectDisposition = tLUProjectStatus.DispositionDescription
     LEFT JOIN tblSizing ON tblProjects.PID = tblSizing.PID
WHERE tblProjects.NLG=Yes
GROUP BY tblProjects.ProjectDisposition
HAVING (tblProjects.ProjectDisposition)="Pending ITSC approval/prioritization"
    OR (tblProjects.ProjectDisposition)="Completed"
    OR (tblProjects.ProjectDisposition)="Cancelled"
    OR (tblProjects.ProjectDisposition)="On-Hold"
)

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Terry Woods

Or slightly better:

select ProjectDisposition, iif(isnull(SumOfCC_CostEstimate),0,SumOfCC_CostEstimate)
from (
SELECT tblProjects.ProjectDisposition,
       Sum(tblSizing.CC_CostEstimate) AS SumOfCC_CostEstimate
FROM tblProjects 
     LEFT JOIN tLUProjectStatus ON tblProjects.ProjectDisposition = tLUProjectStatus.DispositionDescription
     LEFT JOIN tblSizing ON tblProjects.PID = tblSizing.PID
WHERE tblProjects.NLG=Yes
    and ( (tblProjects.ProjectDisposition)="Pending ITSC approval/prioritization"
          OR (tblProjects.ProjectDisposition)="Completed"
          OR (tblProjects.ProjectDisposition)="Cancelled"
          OR (tblProjects.ProjectDisposition)="On-Hold"
        )
GROUP BY tblProjects.ProjectDisposition
)

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jfmador

If I understand your problem you do have a row in your tblProjects for the On-Hold, but you don't have any data in tblSizing, so the sum return you null?

If you get a null value, simply add a coalesce in your sum : Sum(COALESCE(tblSizing.CC_CostEstimate,0)) then if you get null for the tblSizing.CC_CostEstimate it will be replace by 0 then the sum will give you 0

jfmador

Forget about my coalesce it didn't exists under access, terry is right you should use IIF and ISNULL

but I would suggest

SELECT tblProjects.ProjectDisposition,
Sum(IIF(ISNULL(tblSizing.CC_CostEstimate),0,tblSizing.CC_CostEstimate)) AS SumOfCC_CostEstimate
FROM (tblProjects 
     LEFT JOIN tLUProjectStatus ON tblProjects.ProjectDisposition = tLUProjectStatus.DispositionDescription)
     LEFT JOIN tblSizing ON tblProjects.PID = tblSizing.PID
WHERE tblProjects.NLG=Yes
GROUP BY tblProjects.ProjectDisposition
HAVING (tblProjects.ProjectDisposition)="Pending ITSC approval/prioritization"
    OR (tblProjects.ProjectDisposition)="Completed"
    OR (tblProjects.ProjectDisposition)="Cancelled"
    OR (tblProjects.ProjectDisposition)="On-Hold"

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Terry Woods

Was just about to suggest that myself, thanks to your first suggestion! :-)

jfmador

Yeah I really like COALESCE, I never know how to prononce it and what it really means, Is it a real word? enyway it is a neat function.

sorry i'm french :)

RalphyC

ASKER

jfmador

Using your last example, I am still getting only 3 rows returned. To make this clear, tblprojects does not have any records that match (ProjectDisposition="On-Hold" and tblProjects.NLG=Yes). Table tblSizing is only used for purpose of extracting the CC_CostEstimate if it has matching PID from table tblProjects, and it is a 1 to 1 relationship with tblProjects. Please advise.
ProjectDisposition SumOfCC_CostEstimate
Cancelled 128000
Completed 30000
Pending ITSC approval/prioritization 130000
On-Hold 0 ' This is still missing

jfmador

ok then you need a table with a row containing ProjectDisposition = "On-Hold"

you can use the same table twice to do it

SELECT tblProjects.ProjectDisposition, IIF(ISNULL(SumOfCC_CostEstimate),0,SumOfCC_CostEstimate) 
FROM tblProjects LEFT JOIN (
SELECT tblProjects.ProjectDisposition,
Sum(tblSizing.CC_CostEstimate) AS SumOfCC_CostEstimate
FROM (tblProjects 
     LEFT JOIN tLUProjectStatus ON tblProjects.ProjectDisposition = tLUProjectStatus.DispositionDescription)
     LEFT JOIN tblSizing ON tblProjects.PID = tblSizing.PID
WHERE tblProjects.NLG=Yes
GROUP BY tblProjects.ProjectDisposition
) t on tblProjects.ProjectDisposition = t.ProjectDisposition
WHERE (tblProjects.ProjectDisposition) = "Pending ITSC approval/prioritization"
    OR (tblProjects.ProjectDisposition)="Completed"
    OR (tblProjects.ProjectDisposition)="Cancelled"
    OR (tblProjects.ProjectDisposition)="On-Hold"

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RalphyC

ASKER

This works, but it totals all records from table projects, regardelss of the tblProjects.NLG=Yes. If I add this to the criteria tblProjects.NLG=Yes, the On-Hold ), no longer appears.

RalphyC

ASKER

Actually all now I need to so is display the distinct records, since they are repeating well over 100 times.

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Terry Woods

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RalphyC

ASKER

Got it, just add DISTINCT and it will do the trick.

Terry Woods

I think jfmador deserves some points - if you post a request to reopen the question in the community support zone with the url of this question, they will reopen it so you can split the points.