Question

我正在尝试阅读工作表中两个不同选项卡的内容，并使用ADODB和查询技术VBA对它们进行比较。

您可以在下面找到我的代码：

stCon = "Provider=Microsoft.Jet.OLEDB.4.0;" _
 & "Data Source=" & wbBook.FullName & ";" _
 & "Extended Properties=""Excel 8.0;HDR=YES;IMEX=1;Readonly = False"";"
' MsgBox (stCon)
'here is SQL code to gather data including our calculation from two tables within the workbook
'stSQL = "SELECT [Recon_Daily_Xml_report$].RECTYPEGLEDGER, [GL_Activity_totals$].TRXNTYPE, ([Recon_Daily_Xml_report$].Amount_Abs - [GL_Activity_totals$].BILLINGAMT) as Amount_Diff ,"
'stSQL = stSQL & " ([Recon_Daily_Xml_report$].NUMOFENTRIES - [GL_Activity_totals$].NUMOFTRXNS) as Count_Diff "
'stSQL = stSQL & " FROM [Recon_Daily_Xml_report$], [GL_Activity_totals$]"
'stSQL = stSQL & " WHERE Lower([Recon_Daily_Xml_report$].RECTYPEGLEDGER) = Lower([GL_Activity_totals$].TRXNTYPE)"
'stSQL = stSQL & " ORDER BY [Recon_Daily_Xml_report$].RECTYPEGLEDGER ASC"

stSQL = "SELECT LCASE([GL_Activity_totals$].TRXNTYPE),Sum(ABS([GL_Activity_totals$].BILLINGAMT)),Sum([GL_Activity_totals$].NUMOFTRXNS) "
stSQL = stSQL & " FROM [GL_Activity_totals$] "
stSQL = stSQL & " Group By [GL_Activity_totals$].TRXNTYPE "
stSQL = stSQL & " ORDER BY [GL_Activity_totals$].TRXNTYPE ASC"


'MsgBox (stSQL)
Set cnt = New ADODB.Connection
Set rst = New ADODB.Recordset

cnt.Open stCon
'rst.Open stSQL, cnt, 1, 3
rst.Open stSQL, cnt, adOpenStatic, adLockOptimistic
'rst.Open strSQL, cnt, adOpenStatic, adLockOptimistic
With rst


    Do While Not .EOF
    If rst.Fields.Item(0).Value <> "" Then
       strString = Replace(rst.Fields.Item(0).Value, "  ", " ")

        rst.Update
        rst.Fields.Item(0) = strString

    End If
    .MoveNext
    Loop

End With

这个特定的代码给了我一个错误，表明我无法在读取时更新我想要更新的记录集中的字段。我目前得到的错误是：

Run-time error '-2147217911 Cannot update. Database or object is read-only.

试图通过使用1,3选项更改我打开记录集的方式，但我又遇到了同样的错误。

任何人都可以帮忙吗？

Answer 1

问题在于

LCASE([GL_Activity_totals$].TRXNTYPE)

和GROUP BY。在这种情况下，rst.Fields.Item（0）是表达式，而不是表值。您无法更新表达式。此外，由于您正在使用GROUP BY，因此记录集未链接到任何特定记录以进行编辑。您可以完全在SQL

中完成相同的任务

cnt.Execute("UPDATE [GL_Activity_totals$] " & _
" SET [GL_Activity_totals$].TRXNTYPE = Substitute([GL_Activity_totals$].TRXNTYPE,'  ', ' ') " & _
" WHERE NOT [GL_Activity_totals$].TRXNTYPE IS NULL " & _
" AND [GL_Activity_totals$].TRXNTYPE <> '';")

VBA ADODB更新记录集

1 个答案: