[SQL] copy tables

[Shavonne Marietta Wijesinghe]

Hello I have 2 postgreSQL databases called "DATA1" and "DATA2" with several tables inside them (table A, B, C). I modify the details in table "A" in database "DATA1" How can I copy table "A" from database "DATA1" and paste it in database "DATA2" using the same table name ?? Thank you.