use sql query "SELECT * FROM tablename WHERE DATE_='2003-02-01' AND HOUR_ =1" , this query will return 4-5 K records.

when i query in server , it is ok;

when i query in client , it return "
[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]ConnectionCheckForData (CheckforData()).
server: message 11£¬level 16£¬state 1£¬line 0
the network error . please check the network document.
"

thanks.