.NET (Core and Framework)

HttpWebRequest webRequest = (HttpWebRequest)System.Net.WebRequest.Create(url);<br />
<br />
webRequest.Method = "POST";<br />
webRequest.ContentType = "application/x-www-form-urlencoded";<br />
webRequest.SendChunked = true;<br />
webRequest.KeepAlive = false;<br />
<br />
MemoryStream ms = AddPostKeys(postKeys);<br />
totalSize = (int)ms.Length;<br />
webRequest.ContentLength = totalSize;<br />
Stream requestStream =  webRequest.GetRequestStream();<br />
chunkSize = Math.Min(204800 , totalSize);<br />
if (ms != null) requestStream.BeginWrite(ms.ToArray(), 0, chunkSize, WriteCallback, requestStream);

SELECT
    InvoicesCreditsOrders.TypeOfReport, InvoicesCreditsOrders.Isbn,  InvoicesCreditsOrders.CustNo, InvoicesCreditsOrders.CustRef, InvoicesCreditsOrders.OrderDate, InvoicesCreditsOrders.InvDate,
CustMaster.Custno, CustMaster.Custname, InvDelAddr.DelivCustname
FROM
    CATAPULT.dbo.InvoicesCreditsOrders InvoicesCreditsOrders,
    CATAPULT.dbo.ItemMaster ItemMaster,
    CATAPULT.dbo.CustMaster CustMaster,
    CATAPULT.dbo.InvDelAddr InvDelAddr
WHERE
    InvoicesCreditsOrders.Isbn *= ItemMaster.Isbn AND
    InvoicesCreditsOrders.CustNo *= CustMaster.Custno AND
    InvoicesCreditsOrders.ProcessNo *= InvDelAddr.ProcessNo AND
    InvoicesCreditsOrders.DeliveryNo *= InvDelAddr.DeliveryNo AND
    ItemMaster.Filename = 'SA' AND
    InvoicesCreditsOrders.TypeOfReport = 'INVORD' AND
    (ItemMaster.StockReport = 'RSL' OR
    ItemMaster.StockReport = 'PST' OR
    ItemMaster.StockReport = 'O/P' OR
    ItemMaster.StockReport = 'NRR') AND
    CustMaster.Company = '03'
ORDER BY
    CustMaster.Custno ASC,
    InvoicesCreditsOrders.CustRef ASC,
    InvoicesCreditsOrders.Isbn ASC