ok,you are right.Aqua Datastudio can connect the MonetDB via jdbc,I have tried it ,there is no problem. Let me describe the background of my question I asked before. I have a TPC-C benchmark test program,it is used for testing the performance of a DBMS. I have use this program tested some DBMS(say,ORA,DB2,Postgres,and so on),all the DBMS were connected via the odbc driver,and all these DBMS odbc driver can be configured easily.I only need tell the odbc some connect information,say,destanation host name,database name,login name,and so on. So,I want to connect the remote MonetDB server.That is why i ask so many question about odbc driver and connect to a remote MonetDB server. Davy China -- View this message in context: http://www.nabble.com/Another-Question-about-use-Aqua-Datastudio-tf1950599.h... Sent from the monetdb-developers forum at Nabble.com.