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好的，所以我有这个函数，它使用我传递给它的查询字符串来查询数据库。目前它在工作表中输出查询结果。如何获得函数以将结果作为可在 VBA 中用于执行计算等的范围？然后我将如何引用这个范围？例如，在结果中获取“名称”列。

Function Access_Data(query As String)
 'Requires reference to Microsoft ActiveX Data Objects xx Library

Dim Cn As ADODB.Connection, Rs As ADODB.Recordset
Dim MyConn, sSQL As String

Dim Rw As Long, Col As Long, c As Long
Dim MyField, Location As Range

 'Set destination
Set Location = Sheets(1).Range("a1")
 'Set source
MyConn = "S:\Docs\Harry\Engine Client\Engine3.accdb"
 'Create query
sSQL = query

 'Create RecordSet
Set Cn = New ADODB.Connection
With Cn
    .Provider = "Microsoft.ACE.OLEDB.12.0"
    .Open MyConn
    Set Rs = .Execute(sSQL)
End With

 'Write RecordSet to results area
Rw = Location.Row
Col = Location.Column
c = Col
Do Until Rs.EOF
    For Each MyField In Rs.Fields
        Cells(Rw, c) = MyField
        c = c + 1
    Next MyField
    Rs.MoveNext
    Rw = Rw + 1
    c = Col
Loop
Set Location = Nothing
Set Cn = Nothing

结束功能

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2 回答 2

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Function Access_Data(query As String)
 'Requires reference to Microsoft ActiveX Data Objects xx Library

Dim Cn As ADODB.Connection, Rs As ADODB.Recordset
Dim MyConn, sSQL As String

Dim Rw As Long, c As Long
Dim MyField, Result

 'Set source
MyConn = "S:\Docs\Harry\Engine Client\Engine3.accdb"
 'Create query
sSQL = query

 'Create RecordSet
Set Cn = New ADODB.Connection
With Cn
    .Provider = "Microsoft.ACE.OLEDB.12.0"
    .CursorLocation = adUseClient
    .Open MyConn
    Set Rs = .Execute(sSQL)
End With

 'Write RecordSet to results
Redim Result(1 To Rs.RecordCount, 1 To Rs.Fields.Count)
Rw = 1
Do Until Rs.EOF
    c = 1
    For Each MyField In Rs.Fields
        Result(Rw, c) = MyField
        c = c + 1
    Next MyField
    Rs.MoveNext
    Rw = Rw + 1
Loop
Set Cn = Nothing

Access_Data = Result
End Function

这将返回一个多维数组。范围必须引用工作表的某些部分：您不能创建“不可见”范围。（尽管您可以使工作表的一部分不可见，如果那是您所追求的。）

要访问结果：

Dim v, i As Long
v = Access_Data("select ID, Name from somewhere")
For i = 1 To UBound(v, 1)
    MsgBox v(i, 1) & " / " & v(i, 2)
Next
于 2012-10-12T12:11:23.167 回答
1

示例如何从 SQL Server 读取数据并将结果插入工作表（此处使用集成安全性）。如果在插入新数据之前目标工作表为空，则使用 UsedRange 属性来引用它。或者计算一下，rng 是最左上角的单元格。

Option Explicit

' Add reference to Microsoft ActiveX Data Objects Lib

Public Sub main(): On Error GoTo Err_handler

    Dim cn As ADODB.Connection
    Set cn = New ADODB.Connection

    cn.ConnectionString = "Provider=SQLOLEDB;Data Source=MYSUPERSERVER;Initial Catalog=MYSUPERDATABASE;Integrated Security=sspi"
    cn.Open

    Dim rs As ADODB.Recordset
    Set rs = New ADODB.Recordset

    rs.ActiveConnection = cn
    rs.Open "SELECT * FROM MyTable"

    Dim fld As ADODB.Field
    Dim rng As Range
    Set rng = [a1]
    For Each fld In rs.Fields
        rng.Value = fld.Name
        Set rng = rng.Offset(0, 1)
    Next fld

    Set rng = rng.Offset(1, -rs.Fields.Count)
    rng.CopyFromRecordset rs

    rs.Close
    cn.Close
    Set rs = Nothing
    Set cn = Nothing

    Exit Sub

    Err_handler:
    MsgBox Err.Description

End Sub
于 2012-10-12T12:45:08.267 回答