> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/server-administration/backup.md).

# Chapter 25. Backup and Restore

**Table of Contents**

[25.1. SQL Dump](/server-administration/backup/backup-dump.md) : [25.1.1. Restoring the Dump](/server-administration/backup/backup-dump.md#BACKUP-DUMP-RESTORE)

```
[25.1.2. Using pg_dumpall](backup-dump.md#BACKUP-DUMP-ALL)

[25.1.3. Handling Large Databases](backup-dump.md#BACKUP-DUMP-LARGE)
```

[25.2. File System Level Backup](/server-administration/backup/backup-file.md)

[25.3. Continuous Archiving and Point-in-Time Recovery (PITR)](/server-administration/backup/continuous-archiving.md) : [25.3.1. Setting Up WAL Archiving](/server-administration/backup/continuous-archiving.md#BACKUP-ARCHIVING-WAL)

```
[25.3.2. Making a Base Backup](continuous-archiving.md#BACKUP-BASE-BACKUP)

[25.3.3. Making an Incremental Backup](continuous-archiving.md#BACKUP-INCREMENTAL-BACKUP)

[25.3.4. Making a Base Backup Using the Low Level API](continuous-archiving.md#BACKUP-LOWLEVEL-BASE-BACKUP)

[25.3.5. Recovering Using a Continuous Archive Backup](continuous-archiving.md#BACKUP-PITR-RECOVERY)

[25.3.6. Timelines](continuous-archiving.md#BACKUP-TIMELINES)

[25.3.7. Tips and Examples](continuous-archiving.md#BACKUP-TIPS)

[25.3.8. Caveats](continuous-archiving.md#CONTINUOUS-ARCHIVING-CAVEATS)
```

As with everything that contains valuable data, PostgreSQL databases should be backed up regularly. While the procedure is essentially simple, it is important to have a clear understanding of the underlying techniques and assumptions.

There are three fundamentally different approaches to backing up PostgreSQL data:

* SQL dump
* File system level backup
* Continuous archiving

Each has its own strengths and weaknesses; each is discussed in turn in the following sections.

***

原文：[PostgreSQL 18.6 Documentation](https://www.postgresql.org/docs/18/backup.html)（英文原文，待翻譯）


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