insert data from one DB to another problem

Hello I am developing a VB application and my backend is MSSQL 2000.

I have 2 Database Say DB1 and DB2.Both are in Same Server.

Now i need to get data from DB1 and insert into DB2.

Eg.
Insert into tablefromDB1 Select * from ServerName.dbo.TableFromDB2

how can i do this with username

insert into tablefromDB1 select * from Servername.username.TablefromDB2
When i put like this it pops up a error.

Need help
with regards

It is a 4 part qualifier "servername.databasename.owner.objectname"

If both databases are on the same server then use 3 part qualifier.
"databasename.owner.objectname"

Hello MAK you are correct.
I have a model and i like to know your suggestion.
I have a LIVE DB which i cant do anything except pull data from that and process it.So what i planned is have another DB and pull data from the LIVE Db and put it in my TEMPDB and then process data with views and SPs so that my process will be much faster and Less Drag to Server for my application work as a reporting tool. But i have one problem.
The report tool which i am making is a multi user system and so for each user i need to pull data seperately and using USERID i am working around it.Next everytime they import it takes lot of time to import the data for the data is around 600,000 odd. I am using SP to connect to that db and using a selectqry and pull data from live server and assigning directly to the local table in tempdb. Is there any easier way to do this rather than what i am doing?
with regards


With regards
vimal