Question

我无法弄清楚为什么这行不会在DataGrid中返回任何内容，而当我使用一个SQL查询（不是双重SELECT）时，它可以正常工作：

Dim DataAdapterInb As New MySqlDataAdapter("SELECT * FROM (SELECT * From inbox WHERE receiverid='" & ID & "') LIMIT 0,5;", MySqlConnection)

Answer 1

请查看更新的答案。

Dim DataAdapterInb As New MySqlDataAdapter
("SELECT t.* FROM 
       //^Changed
(SELECT * From inbox WHERE receiverid='" & ID & "')t
LIMIT 0,5;", MySqlConnection)                    //^Changed

在vb.net MySQLDataAdapter中进行双SQL查询

1 个答案: