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-backup

SKILL.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_typesqlserver(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=windowsWindows 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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