zhh9126/backup-platform/sqlserver-backup
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SQL Server 数据库备份与恢复技能。基于微软官方 T-SQL 备份体系: 完整备份(BACKUP DATABASE)、差异备份(WITH DIFFERENTIAL)、事务日志备份 (BACKUP LOG),还原采用 RESTORE FILELISTONLY + RESTORE DATABASE WITH MOVE, REPLACE, RECOVERY,校验采用 RESTORE VERIFYONLY WITH CHECKSUM。 当用户需要对 SQL Server 数据库进行备份、恢复或校验时,应使用此技能。 支持 Linux 与 Windows 目标(经 SSH 执行 sqlcmd)。
Install
npx vskill@latest install zhh9126/backup-platform/sqlserver-backupSKILL.md
SQL Server 备份技能
概述
此技能封装了 SQL Server 数据库的完整备份与恢复能力,通过 AIDBM 平台 API(http://localhost:8080)操作。
备份引擎: SQLServerEngine (adapter_tier: peripheral_api)
官方语法对照(Microsoft Learn:BACKUP/RESTORE (Transact-SQL))
| 操作 | T-SQL | |
|---|---|---|
| 完整备份 | BACKUP DATABASE [db] TO DISK = N'<path>.bak' WITH NAME=..., COMPRESSION, CHECKSUM, STATS=10, INIT | |
| 差异备份 | BACKUP DATABASE [db] TO DISK = N'<path>.diff' WITH DIFFERENTIAL, COMPRESSION, CHECKSUM, INIT | |
| 日志备份 | BACKUP LOG [db] TO DISK = N'<path>.trn' WITH COMPRESSION, CHECKSUM, INIT | |
| 还原 | RESTORE FILELISTONLY 获取逻辑文件名 → RESTORE DATABASE [db] FROM DISK=N'...' WITH MOVE ..., REPLACE, RECOVERY | |
| 校验 | RESTORE VERIFYONLY FROM DISK = N'...' WITH CHECKSUM |
支持的能力
| 能力 | 说明 | |
|---|---|---|
| 完整备份(FULL) | BACKUP DATABASE ... TO DISK,启用 COMPRESSION + CHECKSUM,产物 .bak | |
| 差异备份(DIFFERENTIAL) | WITH DIFFERENTIAL,基于最近完整备份的差集,产物 .diff | |
| 日志备份(INCREMENTAL) | BACKUP LOG,事务日志链备份(需恢复模式为 FULL/BULK_LOGGED),产物 .trn | |
| 恢复(RESTORE) | SFTP 推送备份到服务器 → RESTORE FILELISTONLY 解析逻辑文件名 → RESTORE DATABASE ... WITH MOVE, REPLACE, RECOVERY | |
| 恢复校验 | SHA256 + 服务器端 RESTORE VERIFYONLY WITH CHECKSUM | |
| 库清单 | sys.databases(排除 master/tempdb/model/msdb 与离线库) |
前置条件
- 数据库服务器安装 SQL Server(任意版本)+
sqlcmd(Linux 位于/opt/mssql-tools/bin,Windows 随实例安装)——均为数据库自带,平台不装任何客户端 - 平台通过 SSH 连接数据库服务器(任务级 SSH 凭据或已纳管主机)
- 密码通过 sqlcmd 官方环境变量
SQLCMDPASSWORD注入,不进命令行参数 - 日志备份要求数据库恢复模式为 FULL 或 BULK_LOGGED(简单模式下 SQL Server 会报错)
任务配置要点
| 配置 | 说明 | |
|---|---|---|
db_type | sqlserver(默认端口 1433) | |
db_name | 必填(单库备份;master/tempdb/model/msdb 为系统库勿作业务备份) | |
backup_type=full | 完整备份 .bak | |
backup_type=differential | 差异备份 .diff(需先有完整备份基准) | |
backup_type=incremental | 日志备份 .trn(需 FULL 恢复模式) | |
extra_options.backup_dir | 可选,服务器端备份目录(默认取 SERVERPROPERTY('InstanceDefaultBackupPath'),Linux 通常 /var/opt/mssql/backup,Windows C:\MSSQL\backup) | |
SSH 主机 os_type=windows | Windows 目标自动切换 cmd 语法 |
恢复语义
- 默认恢复到本任务实例的同名库(
WITH REPLACE, RECOVERY,覆盖已有同名库) - 恢复到指定库名:恢复时指定
target_db(WITH MOVE自动重定向数据/日志文件) - 差异/日志备份的序列恢复(完整 NORECOVERY → 差异 → 日志 → RECOVERY)可按顺序手动执行各产物的恢复实现
API 端点
| 端点 | 说明 | |
|---|---|---|
POST /api/tasks | 创建任务(db_type=sqlserver) | |
POST /api/tasks/<id>/run | 立即执行备份 | |
POST /api/restore | 从备份记录恢复(可指定 target_db) | |
GET /api/tasks/<id>/list-databases | 拉取库清单(已排除系统库) |
环境要求与兼容性
- Linux:SQL Server 2017/2019/2022 on Linux,
mssql-tools自带 sqlcmd - Windows:SQL Server 2008–2022(BACKUP/RESTORE 语法各版本通用),目标主机启用 OpenSSH 后将 SSH 主机
os_type设为windows - sqlcmd 自动发现失败时(冷门安装路径),任务
extra_options.tool_path手动填写 sqlcmd 所在目录
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Source
- SKILL.md in the repositoryCheckingskills/sqlserver-backup/SKILL.md
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