问题
I have a filled ADO recordset in my VBA module. I also have a table in ACCESS that has exactly the same structure as the recordset.
Now I fill the table using a loop (which is fine) going through each dataset record.
What I am wondering: is there a way to insert an entire recordset into the access table? (and more importantly: would this be significantly faster)
回答1:
Here's a basic example (run from excel in this case) which illustrates using a disconnected recordset to add records.
Sub Tester()
Dim con As ADODB.Connection, rs As ADODB.Recordset
Dim i As Long
Set con = getConn()
Set rs = New ADODB.Recordset
rs.CursorLocation = adUseClient '<<<< important!
'get an empty recordset to add new records to
rs.Open "select * from Table1 where false", con, _
adOpenDynamic, adLockBatchOptimistic
'disconnect the recordset and close the connection
Set rs.ActiveConnection = Nothing
con.Close
Set con = Nothing
'add some new records to our test recordset
For i = 1 To 100
rs.AddNew
rs("UserName") = "Newuser_" & i
Next i
'reconnect to update
Set con = getConn()
Set rs.ActiveConnection = con
rs.UpdateBatch '<<< transfer to DB happens here: no loop!
rs.Close
'requery to demonstrate insert was successful
rs.Open "select * from Table1", con, _
adOpenDynamic, adLockBatchOptimistic
Do While Not rs.EOF
Debug.Print rs("ID").Value, rs("UserName").Value
rs.MoveNext
Loop
rs.Close
con.Close
End Sub
Function getConn() As ADODB.Connection
Dim rv As New ADODB.Connection
Dim strConn As String
strConn = "Provider=Microsoft.ACE.OLEDB.12.0;" _
& "Data Source = " & ThisWorkbook.Path & "\Test.accdb"
rv.Open strConn
Set getConn = rv
End Function
回答2:
VBA Recordsets exist virtually in memory called during runtime until they are contained into an actual physical format (i.e., csv, txt, xlsx, xml, database temp table) saved to hard disk. This is akin to data frames in R or Python pandas, SAS datasets, PHP arrays, and other data structures.
Consider exporting your ADO in such a format using CopyFromRecordset methods into an Excel spreadsheet to be saved as csv, txt, xlsx, or xml. Alternatively, you can use the Save method to save recordset in a persistent format type like xml.
Then, append resultant file to MS Access table with its automated data migration features:
- For spreadsheets:
DoCmd.TransferSpreadsheet
- For txt, csv, or other delimited files:
DoCmd.TransferText
- For xml files:
Application.ImportXML
- For local or ODBC/OLEDB linked database tables:
INSERT INTO
append SQL query
回答3:
No. There is no reverse equivalent - could be SetRows
- to the method GetRows
.
来源:https://stackoverflow.com/questions/32821618/insert-full-ado-recordset-into-existing-access-table-without-loop