Folks,
I have a relatively small database, the biggest table ("myTable") is 23
000 records, aprox. size 5MB.
I use a basic query: SELECT * FROM myTable, I execute it and then I process
each row:
while (reader.Read())
{
// process each row
}
Using classic server it works perfectly fine, but when I switched to
embedded server it became maybe 10 times slower - it takes almost 1 minute
to process 23 000 records whereas with classic version it needs a couple of
seconds. Slow is while loop.
I tried different versions of server (dll lib) and of .NET provider
available on the web (including the latest ones). I tried setting FetchSize
and PacketSize in connection string that probably has no effect.
My machine is quite fast - 2 processors 3.2GHz each, 3.5 GB RAM, Windows XP
Pro Sp2 fully patched.
I spent hours on googling for the solution, but the only thing that I found
is the fact that embedded server fetches each row separately and classic
one takes more so it doesn't waste time for communication.
I am not sure if I can do anything with this.
Any ideas?
TIA
Jarek
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