> ## Documentation Index
> Fetch the complete documentation index at: https://clickhouse.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> 详细说明如何备份到 Azure Blob 存储端点，以及如何从该端点恢复

# BACKUP/RESTORE 到 Azure Blob 存储或从中恢复

<div id="syntax">
  ## 语法
</div>

```sql theme={null}
-- 核心命令
BACKUP | RESTORE 
--- 备份/恢复的对象（或排除项）
TABLE [db.]table_name           [AS [db.]table_name_in_backup] |
DICTIONARY [db.]dictionary_name [AS [db.]name_in_backup] |
DATABASE database_name          [AS database_name_in_backup] |
TEMPORARY TABLE table_name      [AS table_name_in_backup] |
VIEW view_name                  [AS view_name_in_backup] |
[EXCEPT TABLES ...] |
ALL [EXCEPT {TABLES|DATABASES}...] } [,...]
--- 
[ON CLUSTER 'cluster_name']
--- 备份目标或恢复来源
TO|FROM 
File('<path>/<filename>') | 
Disk('<disk_name>', '<path>/') | 
S3('<S3 endpoint>/<path>', '<Access key ID>', '<Secret access key>', '<extra_credentials>') |
AzureBlobStorage('<connection string>/<url>', '<container>', '<path>', '<account name>', '<account key>')
--- 附加设置
[SETTINGS ...]
[ASYNC]
```

**有关各命令的详细信息，请参见["命令摘要"](/docs/zh/concepts/features/backup-restore/overview#command-summary)。**

<div id="configuring-backuprestore-to-use-an-azureblobstorage-endpoint">
  ## 配置 BACKUP / RESTORE 以使用 AzureBlobStorage 端点
</div>

要将备份写入 AzureBlobStorage Container，需要以下信息：

* AzureBlobStorage 端点连接字符串 / URL，
* Container，
* Path，
* 账户名称 (如果指定了 URL)
* 账户密钥 (如果指定了 URL)

备份的目标端将指定为：

```sql theme={null}
AzureBlobStorage('<connection string>/<url>', '<container>', '<path>', '<account name>', '<account key>')
```

```sql theme={null}
BACKUP TABLE data TO AzureBlobStorage('DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://azurite1:10000/devstoreaccount1/;',
    'testcontainer', 'data_backup');
RESTORE TABLE data AS data_restored FROM AzureBlobStorage('DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://azurite1:10000/devstoreaccount1/;',
    'testcontainer', 'data_backup');
```