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supplement br doc (#6296) #6637

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Jul 8, 2021
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supplement br doc (#6296) #6637

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supplement br doc
hey-hoho May 19, 2021
27e24aa
Update br/use-br-command-line-tool.md
TomShawn Jul 8, 2021
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4 changes: 4 additions & 0 deletions br/use-br-command-line-tool.md
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Expand Up @@ -321,6 +321,10 @@ br restore db \

以上命令中 `--db` 选项指定了需要恢复的数据库名字。其余选项的含义与[恢复全部备份数据](#恢复全部备份数据)相同。

> **注意**：
>
> 恢复备份数据的时候，`--db` 选项指定的数据库名必须与执行备份时候 `--db`选项指定的数据库名相同，否则无法恢复成功。由于备份数据的元文件`backupmeta` 记录了该数据库名，因此只能将数据恢复到同名的数据库。推荐做法是把备份文件恢复到另一个集群的同名数据库中。

### 恢复单张表的数据

要将备份数据中的某张数据表恢复到集群中，可以使用 `br restore table` 命令。该命令的使用帮助可通过 `br restore table -h` 或 `br restore table --help` 来获取。
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