Database 更新和删除查询不';不包含多值字段
这就是我正在做的。当patients count为0时,它可以工作,但当它增加时,假设为1,它会给出一个错误:“更新或删除查询不包含多值字段。”有什么问题,请帮助我解决。多谢各位Database 更新和删除查询不';不包含多值字段,database,vb.net,Database,Vb.net,这就是我正在做的。当patients count为0时,它可以工作,但当它增加时,假设为1,它会给出一个错误:“更新或删除查询不包含多值字段。”有什么问题,请帮助我解决。多谢各位 rs = New ADODB.Recordset With rs .Open("Select * from Doctor where DName='" & cmbDoctors.Text & "'", cn, 2, 3) If .Fields("Patients
rs = New ADODB.Recordset
With rs
.Open("Select * from Doctor where DName='" & cmbDoctors.Text & "'", cn, 2, 3)
If .Fields("Patients").Value = 10 Then
MsgBox("All appointments had been taken. Please Select another Doctor.")
Exit Sub
End If
patient = Txtname.Text
If .Fields("Patients").Value = 0 Then
.Fields("Patient0").Value = patient
ElseIf .Fields("Patients").Value = 1 Then
.Fields("Patient1").Value = patient
ElseIf .Fields("Patients").Value = 2 Then
.Fields("Patient2").Value = patient
ElseIf .Fields("Patients").Value = 3 Then
.Fields("Patient3").Value = patient
ElseIf .Fields("Patients").Value = 4 Then
.Fields("Patient4").Value = patient
ElseIf .Fields("Patients").Value = 5 Then
.Fields("Patient5").Value = patient
ElseIf .Fields("Patients").Value = 6 Then
.Fields("Patient6").Value = patient
ElseIf .Fields("Patients").Value = 7 Then
.Fields("Patient7").Value = patient
ElseIf .Fields("Patients").Value = 8 Then
.Fields("Patient8").Value = patient
ElseIf .Fields("Patients").Value = 9 Then
.Fields("Patient9").Value = patient
End If
.Fields("Patients").Value += 1
.Fields("Fees").Value += txtAmount.Text
.Update()
.Close()
End With
试试这个
rs = New ADODB.Recordset
With rs
.Open("Select * from Doctor where DName='" & cmbDoctors.Text & "'", cn, 2, 3)
If .Fields("Patients").Value = 10 Then
MsgBox("All appointments had been taken. Please Select another Doctor.")
Exit Sub
End If
patient = Txtname.Text
' filter here that input is 0 to 9
.Fields("Patient" & trim(.Fields("Patients").Value)).Value = patient
.Fields("Patients").Value = .Fields("Patients").Value + 1
.Fields("Fees").Value = .Fields("Fees").Value + val(txtAmount.Text)
.Update()
.Close()
End With
你在使用什么数据库?当我阅读多值字段时,我的第一个想法是Pick,但我相当怀疑它。你能发布你的表格结构吗?另外,这看起来像是经典的ASP,而不是VB.NET。我使用的是MS Access。表有15列1。ID 2。医生的名字3。任命日期4。医生费5。病人人数6-15人。10名患者。没有解决办法我必须克服它,请帮忙。