Optimize VBA code that exports to PDF from MS Access - ms-access

Question

I have two functions that will open and save two diffrent reports based on the same criteria. They are identical except for the refrences:
Function Export_MLR()
On Error GoTo Export_MLR_Err
Dim strReportName As String
DoCmd.OpenReport "Market Rate Notification Final", acViewPreview
strReportName = "S:\National Installations\Market Labor Rates\MLR_INV\MLR\" & Format (Reports![Market Rate Notification Final].Market_ID, "00") & " " & Replace(Reports![Market Rate Notification Final].Product_Code, " / ", "_") & "-" & "Market Rate Notification Final" & "_" & Format(Date, "mmddyy") & ".pdf"
DoCmd.OutputTo acOutputReport, "Market Rate Notification Final", "PDFFormat(*.pdf)", strReportName, False, , , acExportQualityScreen
DoCmd.Close acReport, "Market Rate Notification Final", acSaveNo
Export_MLR_Exit:
Exit Function
Export_MLR_Err:
MsgBox Error$
Resume Export_MLR_Exit
End Function
Then I created this function to select the data and put it into the table that the reports refrence line by line:
Function MassMarket()
On Error GoTo MassMarket_ERR
Dim db As DAO.Database
Dim rs1 As DAO.Recordset
Dim rs2 As DAO.Recordset
'this query creates my rs1 recordset'
DoCmd.SetWarnings (warningsOff)
DoCmd.OpenQuery "mass_market", acNormal, acEdit
DoCmd.SetWarnings (warningsOn)
Set db = CurrentDb()
Set rs1 = db.OpenRecordset("Mass_market_Rate_change")
Set rs2 = db.OpenRecordset("tbl_Form_Auto")
'this checks and clears any records in rs2'
If rs2.EOF = False And rs2.BOF = False Then
rs2.MoveFirst
rs2.Delete
End If
rs1.MoveFirst
'loop goes through and adds 1 line runs reports saves them and deletes line'
Do Until rs1.EOF
Set rs2 = db.OpenRecordset("tbl_Form_Auto")
rs2.AddNew
rs2![MarketID] = rs1![MarketID]
rs2![Product_ID] = rs1![Product_ID]
rs2.Update
Call Export_Invoice
Call Export_MLR
rs1.MoveNext
rs2.MoveFirst
rs2.Delete
Loop
MassMarket_Exit:
Exit Function
MassMarket_ERR:
MsgBox Error$
Resume MassMarket_Exit
End Function
Now all of this worked like a charm but it created, on average 16 .pdf files per minute and I had to create 820 .pdf files(about 50 minutes). If this is the best I can do then I will take it but would love to cut this time in half if possible. Thanks for any and all input. NR

Answer 1

In a comment you indicated the bulk of the time is spent in your functions which export the reports to PDF. I'm uncertain whether we can speed those up.
It seems you open a report, reference a value in that report for use as part of the PDF file name, then call the OutputTo method with the same report name to save it as PDF.
In that situation, I'm uncertain what happens "under the hood" ... whether Access opens a second instance of the report object, or is smart enough to see that you already have an instance open and just use that one instead.
As a test, try to signal Access to use the first report instance. From the online help for the ObjectName parameter of the OutputTo method:
If you want to output the active object, specify the object's type for the ObjectType argument and leave this argument blank.
So what I'm suggesting is try this in your code:
DoCmd.OutputTo acOutputReport, , "PDFFormat(*.pdf)", _
strReportName, False, , , acExportQualityScreen
If Access complains, try it with an empty string for the ObjectName parameter.
DoCmd.OutputTo acOutputReport, "", "PDFFormat(*.pdf)", _
strReportName, False, , , acExportQualityScreen
I don't know how much (or even if) this suggestion will speed up your code. But if you can't speed up those export functions somehow, my hunch is your hope to cut the overall time by half is a shaky proposition.