PostgreSQL 18 : Backup and Restore2026/05/28 |
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For Backup and Restore PostgreSQL Data, it's possible to run with [pg_dump] and [pg_restore]. |
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| [1] | Backup Databases. |
# available types for [--format=*]
# p = plain (SQL)
# c = custom (compression)
# t = tar
# d = directory
# [ubuntu] user takes backup of [testdb]
ubuntu@www:~$ pg_dump -U ubuntu --format=t -d testdb > pg_testdb.tar ubuntu@www:~$ total 8 -rw-rw-r-- 1 ubuntu ubuntu 6656 May 28 02:09 pg_testdb.tar # admin user [postgres] takes backup of all databases postgres@www:~$ mkdir ~/backups postgres@www:~$ pg_dumpall -f ~/backups/pg_DB_all.sql postgres@www:~$ ll ~/backups total 8 -rw-rw-r-- 1 postgres postgres 4304 May 28 02:10 pg_DB_all.sql |
| [2] | Restore Databases. |
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# [ubuntu] user restores [testdb] database from backup file ubuntu@www:~$ pg_restore -U ubuntu -d testdb pg_testdb.tar
# admin user [postgres] restores all database from backup file # if the type of backup file is SQL text, use [psql] command for restoring postgres@www:~$ psql -f ~/backups/pg_DB_all.sql |
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