[mso] Re: Access Query
- From: Cathy.Evans@xxxxxxxxx
- To: mso@xxxxxxxxxxxxx
- Date: Mon, 10 Jan 2005 23:03:51 -0500
Glenda, thanks for the details. If the data is a new row listing for each
course, you could have multiple listings for the same student, with
different course data. If that's the case, I'm thinking go ahead and try
the LAST on the subj field, and MAX on the ID. You should get whatever
data is entered on the MAX id row for that course. Maybe someone will be
able to jump in with SQL help.
I had a very similar student/classes database problem where originally the
student data was set up in one large table. I am having to re-do this
database from scratch and normalize the table structure, then try to get
the queries/forms operating again. In another database where I am getting
data from another system and I'm extracting it in a single table row
format, I created a normalized table structure and now append the new data
to the tables as needed so it is easier to create forms, queries, reports.
That solved my problem of having to deal with data from an outside source
in its own format.
Hope this helps, Cathy
"Glenda Wells"
<gwells@xxxxxxxxxxx To: <mso@xxxxxxxxxxxxx>
>
Sent by: cc:
mso-bounce@freelist
s.org Subject: [mso] Re: Access Query
01/10/2005 10:20 PM
Please respond to
...
mso
here's something i might do in SQL to get what i'm looking for. the data is
in one table with one row per student and course. each student can have
many courses, each course can have many students. the objective is to get
the information related to the maximum course as identified by the
course_id.
student_id
course_id
course_name
course_score
select a.student_uid ,a.course_id, a.course_name, a.course_score
from courses a
where a.course_id=
(SELECT MAX(b.course_id)
FROM courses b
WHERE b.course_id= a.course_id)
SAMPLE
last, first, student_uid, course_name, course_id, course_score
John, Smith, abc123, US History, 01, 4.0
John, Smith, abc123, Roman History, 02, 3.7
DESIRED RESULT: John, Smith, abc123, Roman History, 02, 3.7
-----Original Message-----
From: Cathy.Evans@xxxxxxxxx [mailto:Cathy.Evans@xxxxxxxxx]
Sent: Mon 1/10/2005 3:52 PM
To: mso@xxxxxxxxxxxxx
Cc:
Subject: [mso] Re: Access Query
Can you copy your straight SQL that works into your SQL view
of access? I
have had some luck copying SQL from other data sources, such
as Oracle,
then pasting it in an access query SQL view. Sometimes I have
to do a
little editing, but it may be worth a shot.
Also, is your data in one table with a single row for each
record, or many
tables containing pieces of the whole information? Can you
post your
table(s) structure. Example:
tblExample
Name
UID
Subj
SubjID
"Glenda Wells"
<gwells@xxxxxxxxxxx To:
<mso@xxxxxxxxxxxxx>
>
Sent by: cc:
mso-bounce@freelist
s.org Subject: [mso]
Re: Access Query
01/10/2005 03:22 PM
Please respond to
.....
mso
it's a bear and something I've tried to resolve from time to
time. In
straight SQL (PL/SQL) I can get the desired result by making a
query
with the table listed twice, first to get the max then to get
the
relationship. I can't remember what that's called...subquery?
not sure.
Anyway, I was looking for something similar in Access either
with SQL or
VBA.
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