[AccessD] ...gurus only

To do this with just queries isn't too difficult, though the series (by
your definition) requires a little logic checking.  You could probably
do this with just one query, but what I tested uses two.  A Union query,
and then a totals query.  The Union query takes your W,X,Y, and Z fields
and puts them in the same field:

SELECT ALL W As Field, IIF(Not IsNull([W]),1,0) AS FieldHasData, ID
FROM tblWilliam
UNION ALL SELECT X As Field, IIF(Not IsNull([X]),1,IIF((Not IsNull([W]))
AND (Not IsNull([Y]) OR Not IsNull([Z])),1,0)) AS FieldHasData, ID
FROM tblWilliam
UNION ALL SELECT Y As Field, IIF(Not IsNull([Y]),1,IIF((Not IsNull([W])
OR Not IsNull([Y])) AND Not IsNull([Z]),1,0)) AS FieldHasData, ID
FROM tblWilliam
UNION ALL SELECT Z As Field, IIF(Not IsNull([Z]),1,0) AS FieldHasData,
ID
FROM tblWilliam;

Note: My test table has ID as an AutoNumber, and then fields W,X,Y, And
Z as long integers.  It's important to use the ALL statement in this
thing, because Union queries default to not showing records with
duplicate data.

Next, we can now use a simple totals query to get the results you want:

SELECT tblWilliam.ID, Sum(qryUnionedFields.FieldHasData) AS
SumOfFieldHasData, tblWilliam.W, tblWilliam.X, tblWilliam.Y,
tblWilliam.Z, Max(qryUnionedFields.Field) AS MaxOfField
FROM tblWilliam INNER JOIN qryUnionedFields ON tblWilliam.ID =
qryUnionedFields.ID
GROUP BY tblWilliam.ID, tblWilliam.W, tblWilliam.X, tblWilliam.Y,
tblWilliam.Z
ORDER BY tblWilliam.ID;

Note that the Max field is simple, it's just Maxing the values in the
union query based on the ID field.  The series is summing that 'middle'
field in the Union query, which, by the logic we put in the union query,
shows a 1 if it needs to be counted in the series 'sum'.

I'll send you the sample db I whipped this up in, offline.

Drew

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of William
Hindman
Sent: Friday, November 02, 2007 2:46 PM
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] ...gurus only

...ah me ...leave it to you to catch that one, no wonder I've been
spinning 
in circles ...the fields are indeed long integers though I can convert
them 
readily :)

William

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