How do I do a schema only backup and restore in PostgreSQL?
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03-07-2021 - |
Pergunta
How do I take a schema level backup in PostgreSQL database and restore on the another database? Is there any single command available for this? For example, can I pg_dump and restore in single line?
Solução
pg_dump --schema=masters oldDB > masters1.sql
cat masters1.sql | psql newDB
or
in single command you can do by this
pg_dump oldDB --schema masters | psql -h localhost newDB;
Outras dicas
Backup schema and restore it on system for postgresql as below:
Dump schema for database
pg_dump -s database_name > db.sql
Dump schema for specific table
pg_dump -s database_name -t table_name > db.sql
Restore backed up schema using below command
psql -d database_name -h localhost -U postgres < path/db.sql
-s
or --schema-only
to exclude data from dump
Documentation
What's wrong with the documentation?
Example from the manual:
To dump all schemas whose names start with east or west and end in gsm, excluding any schemas whose names contain the word test:
$ pg_dump -n 'east*gsm' -n 'west*gsm' -N 'test' mydb > db.sql