I am using MS Access and I have a rather complex situation.
I have Respondents who are linked to varying numbers of different Companies via 2 connecting tables. I want to be able to create a list of distinct customers which excludes any customer associated with Company X.
Here is a pic of the relationships that are involved with the query.
And here is an example of what I'm trying to achieve.
RespondentRef | Respondent Name
8 Joe Bloggs
.
RespondentRef | GroupRef
8 2
.
GroupRef | CompanyRef
2 10
.
CompanyRef | CompanyName
10 Ball of String
I want a query where I enter in 'Ball of String' for the company name, and then it produces a list of all the Respondents (taken from Tbl_Respondent) which completely excludes Respondent 8 (as he is linked to CompanyName: Ball of String).
Tbl_Respondent
RespondentRef | Respondent Name
... ...
7 Bob Carlyle
9 Anton Boyle
I have tried many combinations of subqueries with <> and NOT EXISTS and NOT IN and nothing seems to work. I suspect the way these tables are linked may have something to do with it.
Any help you could offer would be very much appreciated. If you have any questions let me know. (I have made best efforts, but please accept my apologies for any formatting conventions or etiquette faux-pas I may have committed.)
Thank you very much.
EDIT:
My formatted version of Frazz's code is still turning resulting in a syntax error. Any help would be appreciated.
SELECT *
FROM Tbl_Respondent
WHERE RespondentRef NOT IN (
SELECT tbl_Group_Details_Respondents.RespondentRef
FROM tbl_Group_Details_Respondents
JOIN tbl_Group_Details ON tbl_Group_Details.GroupReference = tbl_Group_Details_Respondents.GroupReference
JOIN tbl_Company_Details ON tbl_Company_Details.CompanyReference = tbl_Group_Details.CompanyReference
WHERE tbl_Company_Details.CompanyName = "Ball of String"
)
This should do what you need:
SELECT *
FROM Tbl_Respondent
WHERE RespondentRef NOT IN (
SELECT gdr.RespondentRef
FROM Tbl_Group_Details_Respondent gdr
JOIN Tbl_Group_Details gd ON gd.GroupRef=gdr.GroupRef
JOIN Tbl_Company_Details cd ON cd.CompanyRef=gd.CompanyRef
WHERE cd.CompanyName='Ball of String'
)
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