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postgreSQL EXTENSION dblink and postgres fdw


Extention dblink

dblink EXTENSION is a technique to connect another database and make operation of this database so to do that you need:

1-Create a dblink extention:


2-Make your operation:

For exemple Select some attribute from another table in another database:

dblink ('dbname = bd_distance port = 5432 host = user = username
password = passw@rd', 'SELECT id, code FROM schema.table')
AS newTable(id INTEGER, code character varying);


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