mysql - 我想从 MySQL 数据库中删除一行

Question

程序的第一部分读取数据库工作正常，问题在于删除。数据库如下所示:ID、用户名和文本。

我当前使用的代码:

Public Class Form1
    Dim dbCon As MySqlConnection
    Dim strQuery As String = ""
    Dim SQLCmd As MySqlCommand
    Dim dr As MySqlDataReader

    Private Sub Delete()
        Try
            dbCon = New     MySqlConnection(Connection string)
            strQuery = "Delete * FROM otletek WHERE id = " & TextBox2.Text
            SQLCmd = New MySqlCommand(strQuery, dbCon)
            dbCon.Open()
            MsgBox(strQuery)
            dbCon.Close()
        Catch ex As Exception
            MsgBox("Connection error" & vbCrLf & ex.Message)
        End Try
    End Sub

Answer 1

您是否缺少执行 SQL 命令的代码？

SQLCmd.ExecuteNonQuery()