Script
Commands
$ mysqldump -u root -p --all-databases > alldb.sql
Look up the documentation for mysqldump. You may want to use some of the options mentioned in comments:
$ mysqldump -u root -p --opt --all-databases > alldb.sql
$ mysqldump -u root -p --all-databases --skip-lock-tables > alldb.sql
Import:
$ mysql -u root -p < alldb.sqlCode language: PHP (php)
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A useful addition would be discussing backup verification and recovery testing, not just the backup creation process. In production environments, a backup is only reliable if it can be restored successfully within the required recovery time. Periodically validating backup files, performing test restores in an isolated environment, and documenting recovery procedures help detect corruption, permission issues, or missing objects before an actual failure occurs. This practice significantly improves database resilience and reduces risk during disaster recovery.