提高从 VBA 词典多次插入 Access DB 的速度

Question

我正在尝试使用 VBA 词典并且：

如果不存在，则向数据库中插入一个新行
如果有则更新行

虽然我当前的代码适用于此，但对于我可能需要更新的数千条记录，它运行得非常慢，而且我在该站点上找到的其他解决方案并没有真正实现我所追求的。谁能帮我实现这个目标？到目前为止我的代码如下：

Sub UpdateDatabase(dict As Object)
Dim Conn As Object, StrSQL As String, Rs As Object
Dim hmm As ADODB.Recordset

Set Conn = CreateObject("ADODB.Connection")
Conn.Provider = "Microsoft.ACE.OLEDB.12.0"
Conn.Open "C:\XXXX\cfrv2.accdb" 

dictCount = dict.Count
counter = 0
For Each varKey In dict.Keys()
    Application.StatusBar = Str(counter) & "/" & Str(dictCount)
    counter = counter + 1
    StrSQL = "SELECT * FROM `All SAMs Backlog` WHERE [LOCID] = '" & varKey & "'"

    Set hmm = Conn.Execute(StrSQL)
    If hmm.BOF And hmm.EOF Then
        StrSQL = "INSERT INTO `ALL SAMs Backlog` ([SAM], [LOCID], [RTC Date], [CFR Status], [CFR Completed Date], [CFR On Hold Reason], [MDU], [ICWB Issue], [Obsolete]) VALUES (dict.Item(varKey)(0), '" & varKey & "', '20/12/2018', '" & dict.Item(varKey)(1) & "', '02/01/2019', '" & dict.Item(varKey)(2) & "' , '" & dict.Item(varKey)(3) & "' , '" &dict.Item(varKey)(4) & "' , '" & dict.Item(varKey)(5) & "')"
        Conn.Execute (StrSQL)
    Else
        'Update the LOC in the table
        StrSQL = "UPDATE `All SAMs Backlog` SET ([CFR Status] = '" & dict.Item(varKey)(1) & "', [CFR On Hold Reason] = '" & dict.Item(varKey)(2) & "', [MDU] = '" & dict.Item(varKey)(3) & "', [ICWB Issue] = '" & dict.Item(varKey)(4) & "', [Obsolete] = '" & dict.Item(varKey)(5) & "')"
        Conn.Execute (StrSQL)
    End If
Next

Conn.Close
End Sub

感谢任何帮助。

Answer 1

或者：

将字典的内容写入临时 table，然后运行此处描述的查询：

或：

将 [All SAMs Backlog] 作为记录集打开，根据需要循环字典以 add 或 edit 记录，然后关闭记录集.

提高从 VBA 词典多次插入 Access DB 的速度

Increase speed of multiple inserts into Access DB from VBA Dictionary

sql

ms-access

vba

adodb