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Back-end > Database with dcomnection, socketconnect, datasnap as middleware have what advantage?
Database with dcomnection, socketconnect, datasnap as middleware have what advantage?
Dcom will encounter all sorts of network problems, the socket will have to open a program, datasnap see source also can't understand,
Server: tfdconnection> Tfdquery> Savetostream or results & gt; Ttcpserver
The client ttcpclient
This is not more convenient? Only need client tfdquery before post data to be processed into a SQL statement? Or it is supposed to be uploaded?