Hi,
I have a query that looks like this:
PatientID LastVisit LastMed LastVaccine
1001 1/1/2004 3/1/2004 10/1/2004
1002 10/1/2005 3/1/2004 10/1/2004
.....
I need a calculated field (let's call it LastActivity) that contains
the maximum of LastVisit, LastMed, and LastVaccine. Thus, lastActivity
should be 10/1/2004 for the first record and 10/1/2005 for the second
record in the example above. Any ideas?
Thanks,
4  2734 
benignor wrote: Hi,
I have a query that looks like this:
PatientID LastVisit LastMed LastVaccine
1001 1/1/2004 3/1/2004 10/1/2004
1002 10/1/2005 3/1/2004 10/1/2004
....
I need a calculated field (let's call it LastActivity) that contains
the maximum of LastVisit, LastMed, and LastVaccine. Thus, lastActivity
should be 10/1/2004 for the first record and 10/1/2005 for the second
record in the example above. Any ideas?
Thanks, http://groups.google.com/group/comp....211fb18?hl=en&
should give you some ideas. I should think about the problem to see if
there's a better way, but I don't feel like doing any thinking today.
Sorry.
James A. Fortune
benignor wrote: Hi,
I have a query that looks like this:
PatientID LastVisit LastMed LastVaccine
1001 1/1/2004 3/1/2004 10/1/2004
1002 10/1/2005 3/1/2004 10/1/2004
....
I need a calculated field (let's call it LastActivity) that contains
the maximum of LastVisit, LastMed, and LastVaccine. Thus, lastActivity
should be 10/1/2004 for the first record and 10/1/2005 for the second
record in the example above. Any ideas?
Thanks,
If you only need the date, then just create a union query of the 3
"visits".
SELECT PatientID, LastVisit AS SomeDate
UNION ALL
SELECT PatientID, LastMed AS SomeDate
UNION ALL
SELECT PatientID, LastVaccine AS SomeDate;
Then you can do a summary query on that and get the MAX of the dates.
LOL... you forgot to hang the "temporaril y out of service" sign on your
head.
pi********@hotm ail.com wrote: LOL... you forgot to hang the "temporaril y out of service" sign on your
head.
Catch 22. The "temporaril y out of service" sign that I forgot covers
forgetting it :-).
James A. Fortune This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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