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copy entire Postgres database (its structure and data)

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create db using sql prompt:
CREATE DATABASE newdb WITH TEMPLATE originaldb;
create db with sql prompt:
$ CREATEDB new_db_name -T orig_db_name -O db_user;
  • This requires originaldb to not be in use
  • you need to stop all services. and this work fine
  • This is probably implemented as CREATE DATABASE newdb WITH TEMPLATE originaldb OWNER dbuser; and as a result requires that the original database must be idle (no connections with write access) and any new connections to original database are prevented while the copying is in process. 

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