database copy and move

Hello;

http://www.postgresql.org/doxlist.html noticed there isn't any info in
copy the postgres data - database directory and files and setting up the
same database on another machine. I've tried using createdb then
pgaccess to import tables. Using psql the tables are found but the data
isn't.

When importing a table I'm getting the error Error executing query.

Copy subreservation From "subreservation1'

PostgresSQL error message:
Error: CopyFrom: Fail to add null value in not null attribute username

PostgresSQL
status:PGRES_FATAL_ERR
OR

Also ERROR: Bad int8 external representation for another copy and
somtimes I'm getting you can not copy a duplicate value into a duplicate
key message.

I'd appreciate if someone could turn me on to why I'm getting these
messages and possibly how you can move a database to another machine.

tjt:

--
===========================================
Todd Turner - tjturner(at)chpc(dot)utah(dot)edu
(801 - 585-1266)
Center for High Performance Computing
University of Utah
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