mysql - 使用相同打开的连接插入超过 50 个查询

Question

所以我基本上想要的是向我的数据库插入超过 1 个查询，而不需要 conn.close 比 conn.open 太多次，并且尝试超过 50 次..

这是代码的exp:

    Dim COMMAND As MySqlCommand
    Dim reader As MySqlDataReader
    Dim conn As MySqlConnection
    Dim Item1 As String = "INSERT INTO item_template (entry, name, display) VALUES ('1234', 'Testing', '654';"
    Dim Item3 As String = "UPDATE Item_template SET entry = '123' where name like 'test32111';"
    Dim Item2 As String = "INSERT INTO item_template (entry, name, display) VALUES ('123467', 'Testing332', '65478';"
    Try
        conn.Open()
        COMMAND = New MySqlCommand(Item1, conn)
        reader = COMMAND.ExecuteReader
        conn.Close()
    Catch ex As Exception
        MessageBox.Show(ex.Message)
    End Try
    Try
        conn.Open()
        COMMAND = New MySqlCommand(Item3, conn)
        reader = COMMAND.ExecuteReader
        conn.Close()
    Catch ex As Exception
        MessageBox.Show(ex.Message)
    End Try
    Try
        conn.Open()
        COMMAND = New MySqlCommand(Item2, conn)
        reader = COMMAND.ExecuteReader
        conn.Close()
    Catch ex As Exception
        MessageBox.Show(ex.Message)
    End Try

Answer 1

在不解决参数化/准备查询等其他问题的情况下，最简单的修复应该是......

Dim COMMAND As MySqlCommand
Dim conn As MySqlConnection
Dim Item1 As String = "INSERT INTO item_template (entry, name, display) VALUES ('1234', 'Testing', '654');"
Dim Item3 As String = "UPDATE Item_template SET entry = '123' where name like 'test32111';"
Dim Item2 As String = "INSERT INTO item_template (entry, name, display) VALUES ('123467', 'Testing332', '65478');"
Try
    conn.Open()
    COMMAND = New MySqlCommand("", conn)
    COMMAND.CommandText = Item1
    COMMAND.ExecuteNonQuery
    COMMAND.CommandText = Item2
    COMMAND.ExecuteNonQuery
    COMMAND.CommandText = Item3
    COMMAND.ExecuteNonQuery
    conn.Close()
Catch ex As Exception
    MessageBox.Show(ex.Message)
End Try

我的 VB 有点生疏，所以要小心拼写错误(我多次尝试添加 ;)