mysql - 创建返回 Mysql 数据的自定义 Excel 函数

Question

我想创建一个自定义的excel函数，它将单元格值作为参数来查询mysql数据库

Function excelmysql2()

    Dim odjDB As ADODB.Connection
     Dim sqlstr As String
    Dim rs As ADODB.Recordset
    Dim oRS, nRec, oFld
    Dim Row


     '----------------------------------------------------------------------

    Set odjDB = New ADODB.Connection

    Sheets("Sheet1").Select

    odjDB.Open "DRIVER={MySQL ODBC 5.3 Unicode Driver};" & _
    "SERVER=192.168.0.64;" & _
    "DATABASE=mifos;" & _
    "Port=3307;" & _
    "USER=root;" & _
    "PASSWORD=admin;"




    Set oRS = odjDB.Execute("SELECT account.customer_id FROM mifos.account WHERE (mifos.account.account_id= '" & Range("A3").Value & "')")

    nRec = 0
    Row = 3

    Do While Not oRS.EOF
        For Each oFld In oRS.Fields

            Worksheets("Sheet1").Cells(Row, 3).Value = oRS("customer_id")


            Row = Row + 1
            On Error Resume Next
            oRS.MoveNext

        Next
    Loop

    oRS.Close
    odjDB.Close

End Function

正如您注意到的那样，在函数中设置了单元格编号因为我找不到让它动态的方法。我希望能够像任何 excel 函数一样使用该函数，我可以在其中传递单元格的值并从 mysql 获取查询值

我应该用什么代替 Range("A3") 才能通过传递单元格值在 Excel 中使用此函数？(例如:=excelmysql2(A1)...)

谢谢

Answer 1

下面的例子。与您的问题相关

使用它，只需更改参数....

它说明了一个查询，该查询返回基于月份和年份的(收盘价 “MEND”)外汇汇率，来自名为 finance 的数据库中名为 rates 的表

SELECT rates.MEND 
   FROM rates 
WHERE rates.Cur =  'USD' 
 AND  rates.Month = JAN 
 AND  rates.Year = 2015
returns 14.35

Table : rates

Cur | Month| Year | MEND

ZAR | JAN | 2015 | 1.453

USD | JAN | 2015 | 14.35

Function MySQL_Month_endRate(Curr As String, Monn As Integer, yearr As Integer) As String
'##################
'##  Connection  ##
'##################

Dim conn As Variant
Dim rs As Variant
Dim cs As String
Dim query As String


Dim Table_Name As String
Table_Name = "rates"

Dim Database_Name As String
Database_Name = "finance"


Set conn = CreateObject("adodb.connection")
Set rs = CreateObject("adodb.recordset")


     cs = "DRIVER={MySQL ODBC 5.3 ANSI Driver};"
cs = cs & "DATABASE=" & Database_Name & ";"
cs = cs & "SERVER=127.0.0.1"

conn.Open cs, "root", "root" 'UserName and Password else WindowsNT Autentication






'####################
'##      QUERY     ##
'####################

query = "SELECT rates.MEND FROM rates WHERE rates.Cur =  '" & Curr & "' AND  rates.Month = " & Monn & " AND  rates.Year = " & yearr

'Curr As String, Monn As Integer, yearr As

Debug.Print query
rs.Open query, conn


'####################
'##   RECORD SET   ##
'####################




     Do Until rs.EOF


'       row = row + 1
'       Cells(row, 5).Value = rs.Fields("Serial key").Value
      Debug.Print rs.Fields("MEND").Value


      MySQL_Month_endRate = rs.Fields("MEND").Value

       rs.MoveNext
     Loop


'#####################
'##      Return     ##
'#####################










Set rs = Nothing
conn.Close
Set conn = Nothing


'myRibbon.Invalidate
'End
errline:
If Err.Description <> "" Then MsgBox Err.Description
'MsgBox Err.Description


End Function