我想从两个表在MySQL阅读:从vb.net数据读取多个表中读取
Dim sqlcom As MySqlCommand = New MySqlCommand("Select * from mother, father where IDNO= '" & TextBox14.Text & "' ", sqlcon)
- 但是我得到这个错误:
Column 'IDNO' in where clause is ambiguous
这里是整个代码:
Dim NoAcc As String
Dim NoAccmod2 As String
Dim NoPas As String
Dim sqlcon As New MySqlConnection("Server=localhost; Database=school;Uid=root;Pwd=nitoryolai123$%^;")
Dim sqlcom As MySqlCommand = New MySqlCommand("Select * from mother, father where IDNO= '" & TextBox14.Text & "' ", sqlcon)
sqlcon.Open()
Dim rdr As MySqlDataReader
rdr = sqlcom.ExecuteReader
If rdr.HasRows Then
rdr.Read()
NoAcc = rdr("IDNO")
If (TextBox14.Text = NoAcc) Then TextBox7.Text = rdr("MOTHER")
If (TextBox14.Text = NoAcc) Then TextBox8.Text = rdr("MOTHER_OCCUPATION")
If (TextBox14.Text = NoAcc) Then TextBox10.Text = rdr("FATHER")
If (TextBox14.Text = NoAcc) Then TextBox11.Text = rdr("FATHER_OCCUPATION")
End If
- 有什么建议可以帮助解决这个问题吗? 甚至还有其他技术可以实现使用数据读取器从两个表中读取数据的目标?
这是一个WinForm,而不是一个Web表单
仅供参考,您的代码是受到SQL注入攻击。 http://stackoverflow.com/questions/tagged/sql-injection – Josh 2010-03-18 04:54:50