...how to filter/query recods

U

Uwiprof

i have a table with 20,000 records. one column includes names. another column
includes multiple dates the person visited a doctor, and another column
includes dates the person visited a hospital. i am only interested in the
last date the person visited a doctor and the last date the person visited a
hospital (if they had any visits to the doctor or hospital). I am also
interested in members who have had no visits to the doctor or hospital. any
suggestions on how i can filter the data to only return these records? thanks


Name Date Visited Doctor Date Visited Hospital
Nigel 01/01/1980 012/31/1995
05/20/1999 06/06/2005
03//02/2004 05/06/2004



For example, I only want to return

Nigel, 03/02/2004 (Date Visited Doctor), and 06/06/2005 (Date Visited
Hospital). thank you. i really appreciate any help you can offer.
 
B

Bill Edwards

SELECT Name, max([Visited Doctor]) AS Last_Visit_Date, "Doctor Visit" AS
Visit_Type
FROM TableName
GROUP BY Name, "Doctor Visit"
UNION SELECT Name, max([Visited Hospital]), "Hospital Visit"
FROM TableName
GROUP BY Name, "Hospital Visit"
 

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