I have a field as follows:
aa_comp
03, 04, 05
03, 07, 05, 20
03, 06, 07
It is imported from xml (along with other fields), and I am aware of
multiple values in a field is bad normalisation.
I need to count of each text occurrence within the whole field column.
The results would look like:
03: 3
04: 1
05: 2
06: 1
07: 2
20: 1
The possible values range from 01 to 99.
The field could contain 0 values or anything up to 99 values
The delimiter is with a comma.
Please can someone offer some help?
I assume I would use split() and count(), but I am not sure how to go
about
it.
Thanks for any help,
Simon 3 6222
Normalize
Create a second table. Something like:
CREATE TABLE tblNormalized(
RecordID Autonumber,
NormalizedField Text(255)
);
Normalize your data... copy this into a module and run it...
Option Compare Database
Public Sub NormalizeTable()
Dim rsRead As DAO.Recordset
Dim rsWrite As DAO.Recordset
Dim varValues As Variant
Dim intCounter As Integer
Set rsRead = CurrentDb.OpenRecordset("tblDenormalized",
dbOpenTable, dbOpenForwardOnly)
Set rsWrite = CurrentDb.OpenRecordset("tblNormalized", dbOpenTable)
Do Until rsRead.EOF
varValues = Split(rsRead.Fields("FieldToParse"), ",")
For intCounter = 0 To UBound(varValues)
rsWrite.AddNew
rsWrite.Fields("RecordID") = rsRead.Fields("RecordID")
rsWrite.Fields("NormalizedField") =
Trim$(varValues(intCounter))
rsWrite.Update
Next intCounter
rsRead.MoveNext
Loop
rsRead.Close
rsWrite.Close
Set rsRead = Nothing
Set rsWrite = Nothing
MsgBox "done"
End Sub
then create a query like this:
SELECT tblNormalized.NormalizedField, Count(tblNormalized.RecordID) AS
CountOfRecordID
FROM tblNormalized
GROUP BY tblNormalized.NormalizedField
ORDER BY tblNormalized.NormalizedField;
and that's it.
Thanks for you help.
After running the code, my table looks like:
RecordID NormalizedField
1 03 04 05
2 03 07 20 05
3 03 06 07
Is this correct?
Should it have broken each value out into a new field?
Thanks for the help
Simon pi********@hotmail.com wrote: Normalize
Create a second table. Something like:
CREATE TABLE tblNormalized( RecordID Autonumber, NormalizedField Text(255) );
Normalize your data... copy this into a module and run it...
Option Compare Database
Public Sub NormalizeTable() Dim rsRead As DAO.Recordset Dim rsWrite As DAO.Recordset Dim varValues As Variant Dim intCounter As Integer
Set rsRead = CurrentDb.OpenRecordset("tblDenormalized", dbOpenTable, dbOpenForwardOnly) Set rsWrite = CurrentDb.OpenRecordset("tblNormalized", dbOpenTable)
Do Until rsRead.EOF varValues = Split(rsRead.Fields("FieldToParse"), ",") For intCounter = 0 To UBound(varValues) rsWrite.AddNew rsWrite.Fields("RecordID") = rsRead.Fields("RecordID") rsWrite.Fields("NormalizedField") = Trim$(varValues(intCounter)) rsWrite.Update Next intCounter rsRead.MoveNext Loop
rsRead.Close rsWrite.Close Set rsRead = Nothing Set rsWrite = Nothing MsgBox "done" End Sub
then create a query like this:
SELECT tblNormalized.NormalizedField, Count(tblNormalized.RecordID) AS CountOfRecordID FROM tblNormalized GROUP BY tblNormalized.NormalizedField ORDER BY tblNormalized.NormalizedField;
and that's it.
Simon wrote: Thanks for you help. After running the code, my table looks like:
RecordID NormalizedField 1 03 04 05 2 03 07 20 05 3 03 06 07
Is this correct? Should it have broken each value out into a new field?
Thanks for the help
Simon
it should write the normalized child records to "tblNormalized"
Then you can do summaries on that table. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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It is imported from xml (along with other fields), and I am aware of
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