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Editorial Team
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Asked: 2026-06-01T09:38:55+00:00

I know two methods of copying a postgres database, but both of them require

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I know two methods of copying a postgres database, but both of them require you to have exclusive access to the database, something you do not have while trying to copy a database from production in order to use it for testing something, like a software upgrade/migration.

psql>create database mydb_test with template mydb owner dbuser;
ERROR:  source database "mydb" is being accessed by other users

>createdb -O dbuser -T mydb mydb_test
createdb: database creation failed: ERROR:  source database "mydb" is being accessed by other users
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1 Answer

  1. Editorial Team

    That worked:

    psql
create database mydb_test owner dbuser;
\q
pg_dump mydb|psql -d mydb_test
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