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SQL - Show hospitals Patient most recent visit

Posted on 2014-02-10
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377 Views
Last Modified: 2014-02-11
Two tables in Access - One-to-many

tblPatient
-------------
PatientID
PatientName


tblVisits
-----------
PatientID
DateOfVisit

I want a simple SQL that shows all patient names ONCE and also shows their latest tblVisits.DateOfVisit.

What is my SQL syntax?
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Comment
Question by:Patrick O'Dea
5 Comments
 
LVL 120

Accepted Solution

by:
Rey Obrero (Capricorn1) earned 167 total points
ID: 39847828
test this query

select P.PatientName, Max(V.DateOfVisit)
from tblPatient as P Inner Join tblVisits As V
On P.PatientID=V.PatientID
Group by P.PatientName
0
 
LVL 49

Assisted Solution

by:Gustav Brock
Gustav Brock earned 167 total points
ID: 39847834
You should group by the ID, except if you wish to sort on the patient name.

/gustav
0
 
LVL 7

Assisted Solution

by:Steve
Steve earned 166 total points
ID: 39847852
Something along the lines of:
SELECT tblPatient.PatientName, Max(tblVisits.DateOfVisit) AS [Last Visit]
FROM [tblVisits] INNER JOIN tblPatient ON tblVisits.PatientId = tblPatient.PatientId
GROUP BY tblPatient.PatientId;

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Author Closing Comment

by:Patrick O'Dea
ID: 39851223
Thanks all, I got it working.

(On a separate note , a special thanks to sodea63 ... WHY? because I can't help but wonder if we share the same surname.... O'Dea ??)
0
 
LVL 7

Expert Comment

by:Steve
ID: 39851245
Yes we do. Were family somewhere down the tree.
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