paste...@gmx.com schreef op 8 augustus 2023 01:49:15 CEST:
>
>
>using your first version and placing these lines above the 'break line' i
>got show databases working with both these
>
>sd := chr($0f) + chr($00) + chr($00) + chr($00) + chr($03) + 'SHOW
>DATABASES'; // good <-- is there beter coding method then this without
>having th use chr( for each hex to 'harcode' show databases ? - hexstr didn't
>do it
>sock.sendstring(sd);
>writeln(sock.recvpacket(2000));
I don't understand. You need to do this in a function.
I did that in the executecommand function.
That way you can use it for different commands like show databases, select *
from table, etc.
The first 3 are the length of package. (Part of command+sql)
4th is the package number (starting at 0 with each command because a command
could consist of multiple packages when sending large sql). Not included in
length.
5th is the command. $03 stands for Query.
Followed by the SQL itself.
>// for general command query use
>buffer := 'SHOW DATABASES';
>buffer := chr(1 + length(buffer)) + #0#0#0 + #3 + buffer; // good <-- had
>to add the 1 + length(buffer to your example and the #3
>sock.sendstring(buffer);
>writeln(sock.recvpacket(2000));
You need to do
Buffer := #3 + 'show databases';
And then the line with length buffer, without the #3.
Didn't I do it like that already in ExecuteCommand??
~~
I'll work on a version later on this morning where I read all records into a
TBufDatabase for local processing.
(I'll also change the way length is encoded so the first 3 are taken together
so you don't need to add the #0#0#0.)
Grtz,
Rik
--
Verstuurd vanaf mijn Android apparaat met K-9 Mail. Excuseer mijn beknoptheid.
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