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Editorial Team
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Asked: 2026-06-08T23:00:03+00:00

Good Day All, I need assistance in an creating an update query that groups

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Good Day All,

I need assistance in an creating an update query that groups my data.

The data in my table is actually spatial in nature and can be thought of a matrix that is 10 columns by 5 rows. I have the ObjectID, Row and Column but I want the column DesiredResult which is a 2×2 grouping of the rows & columns.

So the R,Cs of 1,1 1,2, 2,1 and 2,2, will have a DesiredResult of 1 while the 1,3 1,4 2,3 2,4 will have a DesiredResult of 2 and so on (see below for an example) ….

I was able to create the R and C columns using a combination of Quotient & Mod so I assume I would do somethign similar but I am stuck. How would I go about this query in MS Access ?

 ObjectID   R   C   DesiredResult
 1            1 1   1
 2            1 2   1
 3            1 3   2
 4            1 4   2
 5            1 5   3
 6            1 6   3
 7            1 7   4
 8            1 8   4
 9            1 9   5
 10           1 10  5
 11           2 1   1
 12           2 2   1
 13           2 3   2
 14           2 4   2
 15           2 5   3
 16           2 6   3
 17           2 7   4
 18           2 8   4
 19           2 9   5
 20           2 10  5
 21           3 1   6
 22           3 2   6
 23           3 3   7
 24           3 4   7
 25           3 5   8
 26           3 6   8
 27           3 7   9
 28           3 8   9
 29           3 9   10
 30           3 10  10
 31           4 1   6
 32           4 2   6
 33           4 3   7
 34           4 4   7
 35           4 5   8
 36           4 6   8
 37           4 7   9
 38           4 8   9
 39           4 9   10
 40           4 10  10
 41           5 1   11
 42           5 2   11
 43           5 3   12
 44           5 4   12
 45           5 5   13
 46           5 6   13
 47           5 7   14
 48           5 8   14
 49           5 9   15
 50           5 10  15
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1 Answer

  1. Editorial Team

    Remou had a close approximation but it turns out this gives me what I need. I needed both a row and a column index.

     SELECT ObjectID, R, C, 
   Int(([C]-1)/2) AS ColIndex,
   Int(([R]-1)/2) AS RowIndex, 
   [RowIndex]*5+[ColIndex]+1 AS DesiredResult
 FROM Testing
 ORDER BY ObjectID

    The key in the query is that there is the number 2 in both the Column & Row Index (which is the grouping size) and the number 5 is used in Desired Result and represents the Number of Row cells.

    Thanks !

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