CODEWITHSUNDEEP
ms-accessvba
Mark Pelletier
Mark Pelletier

Reputation: 1359

Access VBA: Scripting.Dictionary - Dump to Table?

Thanks to the helpful hand provided earlier, I have a functional approach to compute Word Frequency among strings in a recordset. The following code produces the desired result.

Last step will be to dump the dictionary structure into an Access table in the currentDB. I can step thru each key as commented out below and append to a table via SQL - but it is very slow w/24K terms.

UPDATED >> w/Solution <<

Private Sub Command0_Click()

Dim counts As New Scripting.Dictionary
Dim word As Variant
Dim desc As String

Dim rs1 As DAO.Recordset
Dim rs2 As DAO.Recordset  '<< solution
Dim strSQL As String
Dim db As Database

Set db = CurrentDb

strSQL = "SELECT DISTINCT Items.Description FROM Items ;"

Set rs1 = db.OpenRecordset(strSQL, dbOpenDynaset)

Do While Not rs1.EOF
    For Each word In Split(rs1!Description, " ")
        If Not counts.Exists(word) Then
            counts.Add word, 1
        Else
            counts.Item(word) = counts.Item(word) + 1
        End If
    Next
    rs1.MoveNext
Loop

'>> .AddNew Solution inserted as suggested below <<

rs2 = db.OpenRecordset("Freq", dbOpenTable)  

For Each word In counts.Keys
    With rs2
       .AddNew             ' Add new record
       .Fields!Term = word
       .Fields!Freq = counts(word)
       .Update
       .Bookmark = .LastModified
    End With
Next

rs2.Close

'>> End Solution <<

Set rs1 = Nothing
Set rs2 = Nothing

MsgBox "Done"

End Sub

Question:

  1. Can I dump the Dictionary into a table in BULK, vs stepping thru the Keys one-by-one?

Rationale: Easier (for me) to perform downstream presentation & manipulation using a table structure.

Thanks!

Upvotes: 3

Views: 1816

Answers (1)

Andre
Andre

Reputation: 27634

Your code doesn't show how you tried to insert the rows - with separate INSERT INTO (...) VALUES (...) statements for each row, I assume?

For multiple inserts in a loop, don't use SQL INSERT statements. Instead use a DAO.Recordset with .AddNew, it will be much faster.

See this answer: https://stackoverflow.com/a/33025620/3820271

And here for an example: https://stackoverflow.com/a/36842264/3820271

Upvotes: 1

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