If the purpose is to keep the tables in sync there are three options to achieve this
BCP
- bcp out from source and bcp in to the target
PROXY
- proxy tables (similar to tables accessed via linkserver in MSSQL) needs set up of remote source
server + security set up to access data (preferably same login + p/w to minimize lookups)
REPLICATION
- replication. This needs more effort but the rewards of keeping data in sync are really great.
This will also scale up if you multiple tables to be in sync almost in real time.
Option 1 can be used if it is one time requirement really.
Option 2 can be used if the requirement is a few tables and mostly lookup + reference tables and you do not need real time data sync
Option 3 can be used if you have large set of tables to be kept in sync.
HTH
Avinash