Question

我想做一个LEFT JOIN如下：

sSQL10 = "SELECT workers.WorkerID, Assignements.* From (workers "
sSql11 = "LEFT JOIN Assignements "
sSQL12 = " ON workers.WorkerID = Assignements.WorkerID) WHERE Assignements.opendate111=#" & Me.OpenDate & "#"
sSQL = sSQL10 & sSql11 & sSQL12
rs_worker.Open sSQL, cn, adOpenStatic, adLockOptimistic
With rs_worker
    Do While Not .EOF
        MsgBox .Fields("WorkerID").value
        .MoveNext
    Loop
End With

虽然rs_worker有一条具有WorkerID值的记录，但msgbox会返回错误。

MsgBox .Fields(1).value

确实返回一个值，。field（1）.name显示为 assignements.WorkerID ，而我希望能够将其引用为 rs_worker！WorkerID

Answer 1

字段（1）不是workers.WorkerID，因为它是基数0.将来在访问字段时不要使用索引。使用Fields.Items("FieldNameHere").Value。

请看Effecient way to access field

Answer 2

rs_worker.Open sSQL, cn, adOpenStatic, adLockOptimistic
With rs_worker
    If NOT.BOF Then
        .MoveFirst
        Do While Not .EOF
            MsgBox .Fields(0).value
            .MoveNext
        Loop
    Else
        msgbox "no records found"

    End If
End With

ADO离开加入问题

2 个答案: