![从 MSDB 备份恢复特定作业定义?](https://linux22.com/image/486969/%E4%BB%8E%20MSDB%20%E5%A4%87%E4%BB%BD%E6%81%A2%E5%A4%8D%E7%89%B9%E5%AE%9A%E4%BD%9C%E4%B8%9A%E5%AE%9A%E4%B9%89%EF%BC%9F.png)
我们被要求从过去某个时间的状态恢复特定的 SQL 2005 作业。我们有该时间段的 MSDB 数据库备份,但我无法覆盖当前的 MSDB 数据库,因为我不想丢失该服务器上其他作业的近期更改。
如果我将其恢复为副本(称为 MSDB_old 或类似名称),我该如何提取该作业的信息?还是我需要在临时服务器上通过 MSDB 数据库恢复它?
答案1
无需恢复到临时服务器,您可以将其恢复到您所说的内容(MSDB_old)并执行查询以恢复您的工作:
USE msdb_old
SELECT * FROM sysjobs
JOIN sysjobsteps ON sysjobs.job_id=sysjobsteps.job_id
WHERE sysjobs.NAME='My Lost Job'
ORDER BY sysjobsteps.step_id
你必须恢复
- sysjobs 中的条目
- sysjobsteps 中的每个条目都与 sysjobs 中的上述条目相关
- 如果你想返回历史记录,请进入 sysjobhistory
- sysjobschedules 中的条目来恢复您的计划
编辑:这是一个可以在 SQL 2005 和 2008 中执行此操作的脚本(假设您的工作名为“我的丢失的工作”并且您已恢复到 MSDB_Old)
DECLARE @JobID UNIQUEIDENTIFIER
SELECT @JobID = job_id FROM msdb_old.dbo.sysjobs WHERE NAME='My Lost Job'
INSERT msdb.dbo.sysjobs
SELECT * FROM msdb_old.dbo.sysjobs
WHERE job_id=@JobID
INSERT msdb.dbo.sysjobsteps
SELECT * FROM msdb_old.dbo.sysjobsteps
WHERE job_id=@JobID
SET IDENTITY_INSERT msdb.dbo.sysjobhistory ON
INSERT msdb.dbo.sysjobhistory
(instance_id,job_id,step_id,step_name,sql_message_id,sql_severity,
[message],run_status,run_date,run_time,run_duration,operator_id_emailed,
operator_id_netsent,operator_id_paged,retries_attempted,[server])
SELECT
instance_id,job_id,step_id,step_name,sql_message_id,sql_severity,
[message],run_status,run_date,run_time,run_duration,operator_id_emailed,
operator_id_netsent,operator_id_paged,retries_attempted,[server]
FROM msdb_old.dbo.sysjobhistory
WHERE job_id=@JobID
SET IDENTITY_INSERT msdb.dbo.sysjobhistory OFF
INSERT msdb.dbo.sysjobschedules
SELECT * FROM msdb_old.dbo.sysjobschedules
WHERE job_id=@JobID
答案2
剧本大致基于这个在接受的答案中。它已针对 SQL 2014 进行了更新,包括异常处理、原子事务和一些其他改进。
-- Script for SQL 2014
DECLARE @JobID UNIQUEIDENTIFIER
declare @servername sysname
set @servername = @@SERVERNAME
SELECT @JobID = job_id
FROM msdb_old.dbo.sysjobs
WHERE name='My Lost Job'
BEGIN TRAN
BEGIN TRY
INSERT msdb.dbo.sysjobs
SELECT * FROM msdb_old.dbo.sysjobs
WHERE job_id=@JobID
INSERT msdb.dbo.sysjobsteps
SELECT * FROM msdb_old.dbo.sysjobsteps
WHERE job_id=@JobID
SET IDENTITY_INSERT msdb.dbo.sysjobhistory ON
INSERT msdb.dbo.sysjobhistory
(instance_id,job_id,step_id,step_name,sql_message_id,sql_severity,
[message],run_status,run_date,run_time,run_duration,operator_id_emailed,
operator_id_netsent,operator_id_paged,retries_attempted,[server])
SELECT
instance_id,job_id,step_id,step_name,sql_message_id,sql_severity,
[message],run_status,run_date,run_time,run_duration,operator_id_emailed,
operator_id_netsent,operator_id_paged,retries_attempted,[server]
FROM msdb_old.dbo.sysjobhistory
WHERE job_id=@JobID
SET IDENTITY_INSERT msdb.dbo.sysjobhistory OFF
-- New insert in sysschedules
SET IDENTITY_INSERT msdb.dbo.sysschedules ON
INSERT msdb.dbo.sysschedules (schedule_id, schedule_uid,
originating_server_id, name, owner_sid, enabled,
freq_type,freq_interval, freq_subday_type,
freq_subday_interval, freq_relative_interval,
freq_recurrence_factor, active_start_date,
active_end_date, active_start_time, active_end_time,
date_created, date_modified, version_number)
SELECT schedule_id, schedule_uid, originating_server_id, name,
owner_sid, enabled, freq_type, freq_interval, freq_subday_type,
freq_subday_interval, freq_relative_interval,
freq_recurrence_factor, active_start_date, active_end_date,
active_start_time, active_end_time, date_created, date_modified,
version_number
FROM msdb_old.dbo.sysschedules a
WHERE schedule_id = (select schedule_id from msdb_old.dbo.sysjobschedules b where job_id=@JobID )
SET IDENTITY_INSERT msdb.dbo.sysschedules OFF
INSERT msdb.dbo.sysjobschedules
SELECT * FROM msdb_old.dbo.sysjobschedules
WHERE job_id=@JobID
-- Alter job as local job
EXEC msdb.dbo.sp_add_jobserver @job_id=@JobID, @server_name = @servername
END TRY
BEGIN CATCH
SELECT
ERROR_NUMBER() AS ErrorNumber,
ERROR_SEVERITY() AS ErrorSeverity,
ERROR_STATE() AS ErrorState,
ERROR_PROCEDURE() AS ErrorProcedure,
ERROR_LINE() AS ErrorLine,
ERROR_MESSAGE() AS ErrorMessage;
ROLLBACK TRAN
RETURN
END CATCH
COMMIT TRAN
答案3
从 MSDB 中提取单个作业的最简单方法是右键单击 SSMS 中的作业并说脚本作业 - 然后将脚本带到目标服务器并运行它以重新创建作业(可能需要进行一些修改)。
这仅当 msdb 恢复为 msdb 时才有效 - 这意味着在您的情况下您必须在临时服务器上将备份恢复为 msdb。
我猜您可以将其恢复为 msdb 的副本,然后使用连接手动将所有内容从各个 msdb_copy.dbo.sysjobs/sysjobsteps/sysjobschedules/sysjobservers 表中提取出来。
希望这可以帮助!
答案4
只需用新名称恢复到任何服务器,我之前已经做过很多次了......