Write catalog title here
How to backup the database
Backup database (system storage process)
Syntax format:
execute sp_addumpdevice [设备类型],[逻辑名],[物理名]
Description:
| Statement | Description |
|---|---|
| Equipment type | Indicate the media type, which can be a diskhard disk type or a tapetape type |
| Logical name | The logical name of the database backup |
| Physical name | The path where the backup file is saved. Note: The backup file cannot be saved directly in the root directory of the disk |
Delete backup device (system storage process)
When the created backup device is no longer needed, you can use the system storage process to sp_dropdevicedelete it. E.g:
execute sp_dropdevice [逻辑名],delete
Back up the database through T-SQL statements
[备份：备份数据库]
backup database [被备份的数据库名] to disk='备份文件路径';
-- 注意：被备份的数据库必须要存在，否则就会报错
[离线：离线数据库]
alter database [被恢复的数据库名] set offline with rollback immediate
[恢复：恢复数据库]
restore database [被恢复的数据库名] from disk='备份文件路径'
[在线：将数据库置于在线状态]
alter database [被恢复的数据库名] set online with rollback immediate