Database

SELECT  c.FINVNO
       ,c.FCUSTNO
       ,c.FCOMPANY
       ,c.FSALESPN
       ,c.FSHIPVIA
       ,c.FORDDATE
       ,c.FSHIPDATE
       ,c.FNTAXAMT
       ,(SELECT a.FADDR1 FROM ARCUS01.dbf a WHERE c.FCUSTNO = a.FCUSTNO) as FADDR1
FROM    ARINV01.dbf c
WHERE   c.FORDDATE=@startDate

SELECT  c.FINVNO
,c.FCUSTNO
,c.FCOMPANY
,c.FSALESPN
,c.FSHIPVIA
,c.FORDDATE
,c.FSHIPDATE
,c.FNTAXAMT
,(SELECT a.FADDR1 FROM ARCUS01.dbf a WHERE c.FCUSTNO = a.FCUSTNO) AS FADDR1
,(SELECT e.FEMAIL1 FROM ARCEM01.dbf e WHERE c.FCUSTNO = e.FCUSTNO) AS FEMAIL1
FROM ARINV01.dbf c
WHERE c.FORDDATE=@startDate

string sql = "SELECT House, DateT, TempIn, tempOut, Humidity FROM Environmnets INNER JOIN TDevice ON Environmnets.Deviceid = TDevice.id INNER JOIN TMushroomHouse ON TDevice.MushroomHouseId = TMushroomHouse.id WHERE (Environmnets.DateT = (SELECT MAX(DateT) AS Expr1 FROM Environmnets AS Environmnets_1)) AND TMushroomHouse.Name = @MushroomHouseName";

using (SqlConnection con = new SqlConnection(strConnString))
using (SqlCommand cmd = new SqlCommand(sql, con))
{
    cmd.Parameters.AddWithValue("@MushroomHouseName", DropDownList1.Text);
    
    con.Open();
    
    using (SqlDataReader dr = cmd.ExecuteReader())
    {
        while (dr.Read())
        {
            HouseTextBox.Text = dr["House"].ToString();
            DateTTextBox.Text = dr["DateT"].ToString();
            TempInTextBox.Text = dr["TempIn"].ToString();
            TempOutTextBox.Text = dr["tempOut"].ToString();
            HumidityTextBox.Text = dr["Humidity"].ToString();
        }
    }
}

WHERE (Environmnets.DateT = (SELECT MAX(DateT) AS Expr1 FROM Environmnets AS Environmnets_1))

SELECT TOP 1 House, DateT, TempIn, tempOut, Humidity FROM Environmnets INNER JOIN TDevice ON Environmnets.Deviceid = TDevice.id INNER JOIN TMushroomHouse ON TDevice.MushroomHouseId = TMushroomHouse.id WHERE TMushroomHouse.Name = @MushroomHouseName ORDER BY Environmnets.DateT DESC

SELECT TOP 1 House, DateT, TempIn, tempOut, Humidity, TMushroomHouse.Name As MushroomHouseName FROM Environmnets INNER JOIN TDevice ON Environmnets.Deviceid = TDevice.id INNER JOIN TMushroomHouse ON TDevice.MushroomHouseId = TMushroomHouse.id WHERE TMushroomHouse.Name = @MushroomHouseName ORDER BY Environmnets.DateT DESC

while (dr.Read())
{
    ...
    MushroomHouseTextBox.Text = dr["MushroomHouseName"].ToString();
}

Jassim Rahma wrote:

"MySQL A connection attempt failed because the connected third party did not properly respond after a period of time"

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]

SELECT customer_id, id_number, customer_name, email_address, landline_number, mobile_number, customer_address_building, customer_address_road, customer_address_block, customer_address_landmark, allow_delete, is_blacklist, is_inactive FROM customers ORDER BY customer_name;

Jassim Rahma wrote:

which I though MySQL will be able to handle it easily

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]

Jassim Rahma wrote:

and by the way, I was not pointing fingers Lol

Jassim Rahma wrote:

"MySQL A connection attempt failed because the connected third party did not properly respond after a period of time"

• Create a console-app, use the users' credentials, and try a minimal query (SELECT 1 or something similar)
  
• Test once with your current data provider (MySQL Connector.NET?)
  
• Copy the project, try another data provider (MySQLDotNET[^])
  
• Try the same again, using the dba-account.
  

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]