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VBA - working with data videos | How do I populate an array with an ADODB recordset?

Posted by Andrew Gould on 07 May 2021

How do I populate an array with an ADODB recordset?

This video explains how to use the GetRows method of an ADODB recordset to write data into an array.

See our full range of VBA training resources, or test your knowledge of VBA with one of our VBA skills assessment tests.

This video has the following accompanying files:

File name	Type	Description
ADODB Recordset into Array COMPLETED.xlsm	Excel workbook with macros
ADODB Recordset into Array.xlsm	Excel workbook with macros
Movies.xlsx	Excel workbook

Click to download a zipped copy of the above files.

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This page has 1 thread

From:	nielsjmp
When:	02 Jul 25 at 20:26

Hi, thanks a lot for the tutorials. Im quite new in VBA but have used it to open data from a closed workbook containing a database with around 35 columns and some 15000 rows.

But I run into one weird problem that it took me some time to sort out. In my column no 13 I have some long text strings, worst case I think they can be up to 5000 characters. The recordset ("TableArr()") seems to be truncated to 255 characters. Is there a workaround on this, eventually specify the 13th column to be separately uploaded to an array with specified longer text strings?

I hope the question makes sense! Thanks again:-)

Dim Conn As ADODB.Connection

Dim PartNoRecordSet As ADODB.RecordSet

Dim DwgRecordSet As ADODB.RecordSet

Dim TableArr() As Variant

Dim RevNo As String, PartNo As String ', FirstRow() As String,

Dim PartNos() As String

Dim i As Long, j As Long, IdxDwgRev As Long, IdxPartNo As Long, NoOfRows As Long, NoOfCols As Long

ReDim PartNoDataBaseStr(1, 1)

ReDim FirstRow(1)

ReDim PartNoArr(1)

Set Conn = New ADODB.Connection

Set PartNoRecordSet = New ADODB.RecordSet

SheetName = "PartNoDB"

Conn.ConnectionString = _

"Provider=Microsoft.ACE.OLEDB.12.0;" & _

"Data Source=" & DataBaseDir & "\" & DatabaseFile & _

";Extended Properties='Excel 12.0 Macro;HDR=NO';"

PartNoRecordSet.ActiveConnection = Conn

PartNoRecordSet.Source = "Select * from [PartNoDB$]"

PartNoRecordSet.Open

TableArr = PartNoRecordSet.GetRows 'TableArr includes Null values

NoOfCols = UBound(TableArr, 1)

NoOfRows = UBound(TableArr, 2)

ReDim PartNoDataBaseStr(NoOfCols, NoOfRows)

ReDim FirstRow(NoOfCols)

ReDim PartNoArr(NoOfRows)

'Cleaning up for Null values

For i = 0 To NoOfCols - 1

For j = 0 To NoOfRows - 1

If IsNull(TableArr(i, j)) Then

PartNoDataBaseStr(i, j) = vbNullString

Else

PartNoDataBaseStr(i, j) = TableArr(i, j)

End If

Next

Next

For i = 0 To NoOfCols - 1

FirstRow(i) = PartNoDataBaseStr(i, 0)

Next

For j = 0 To NoOfRows - 1

PartNoArr(j) = PartNoDataBaseStr(0, j)

Next

From:	Andrew G
When:	04 Jul 25 at 11:57

Hi!

I'm unable to replicate this problem although Google suggests you're not the only one experiencing it.

You could try adding a MAXSCANROWS extended property to your connection string to force it to look at every row of data to determine the data type.

See the answer here for more information https://stackoverflow.com/questions/54173345/problems-reading-doubles-from-csv-vba

I hope it helps!

From:	nielsjmp
When:	07 Jul 25 at 12:46

Hi Andrew, thanks for your efforts and your reply!

I have made a test-example, which can be found on

https://www.excelforum.com/excel-programming-vba-macros/1435961-recordset-is-concatenated-when-importing-it.html#post6032938

It doesnt look like I can attach a file here, theres an example at the excelforum.
If you cant replicate it, it might be machine dependant, there might be a setting somewhere(?)

Thanks again - Niels

From:	Andrew G
When:	10 Jul 25 at 07:17

Hi Niels!

I'm not aware of a machine-specific setting which controls this. I'm not sure what else to suggest here, I'm stumped!

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