通过 vb.net 在 mysql 中更新数据库时出现语法错误

Question

In the following code snippet I have tried to update the student_info table using mysql statements through an application interface in vb.net

Dim Connection As MySqlConnection
    Dim Command As MySqlCommand
    Connection = New MySqlConnection
    Connection.ConnectionString =
        "server=localhost;userid=root;password=root;database=student;"

    Try
        Dim DataReader As MySqlDataReader
        Connection.Open()
        Dim Query As String
        Query = "UPDATE student.student_info set (Student_Name='" & SName.Text & "',Date_of_Birth='" & DateTimePicker1.Text & "',Department='" & ComboBoxDept.Text & "') where Roll_Number = '" & SRoll.Text & "';"
        Command = New MySqlCommand(Query, Connection)
        DataReader = Command.ExecuteReader()
        MessageBox.Show("Data is Updated !")
        DataReader.Close()
        Connection.Close()
    Catch ex As Exception
        MessageBox.Show(ex.Message)
    Finally
        Connection.Dispose()
    End Try

I received the following error : You have an error in your SQL syntax;check the manual the corresponds to your MySql server version for the right syntax to use near '(.......' at line 1

Here is the included image for error :

Error Image

Answer 1

UPDATE语句中不需要使用括号，可以用逗号设置多个字段，例如：

Query = "UPDATE student.student_info set Student_Name='" & SName.Text & "', Date_of_Birth='" & DateTimePicker1.Text & "',Department='" & ComboBoxDept.Text & "' where Roll_Number = '" & SRoll.Text & "';"