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sql - 查找要删除的引用不存在的数据库的 SQL 作业

问题描述

我试图找到我们所有不再需要的 SQL 作业，因为它们使用的数据库不再存在。

逻辑很简单，选择带有命令的作业列表，然后在命令中检查数据库是否列在 sysdatabase 表中。到目前为止，这就是我所拥有的，几乎就在那里：

SELECT 
   Srv.srvname AS ServerName,
   Job.name AS JobName,
   JStep.step_id,
   --JStep.step_name AS StepName,
   JStep.command
   --,Job.enabled 
    into #JobListTable
FROM   msdb.dbo.sysjobs Job
JOIN   msdb.dbo.sysjobsteps JStep
   ON  JStep.job_id = Job.job_id 
JOIN   MASTER.dbo.sysservers Srv
   ON  Srv.srvid = Job.originating_server_id
WHERE  JStep.subsystem='SSIS'
--SELECT * FROM #JobListTable

DECLARE @JobName SYSNAME, @StepId INT, @Command NVARCHAR(MAX),@PosStart BIGINT, @PosEnd BIGINT, @Server NVARCHAR(128),@JobList VARCHAR(MAX), @DBNAMETEMP SYSNAME, @SQLStatement VARCHAR(MAX)
DECLARE @MAXID INT, @Counter INT

SET @COUNTER = 1
SELECT @MAXID = COUNT(*) FROM #JobListTable
    
WHILE (@COUNTER <= @MAXID)
--WHILE (@COUNTER <= 3)
    BEGIN
            SET @JobName=(SELECT top 1 JobName FROM #JobListTable)-- WHERE command=@Command)
            SET @command=(SELECT top 1 command FROM #JobListTable)-- WHERE JobName=@JobName)  
            SET @StepId=(SELECT top 1 step_id FROM #JobListTable)

            SELECT @Command = [s].[command]
            FROM msdb.dbo.[sysjobs] [j]
            INNER JOIN msdb.dbo.[sysjobsteps] [s] ON [s].[job_id] = [j].[job_id]
            WHERE [j].[name] = @JobName
              AND [s].[step_id] = @StepId

            SET @PosStart = PATINDEX('%/SERVER %', @Command)+8
            SET @PosEnd = CHARINDEX(' ', @Command, @PosStart)
            SET @Server = SUBSTRING(@Command, @PosStart, @PosEnd - @PosStart)
            SET @PosStart = PATINDEX('%"\"%', @Command)+3
            SET @PosEnd = PATINDEX('%\""%', @Command)
            SET @Command = SUBSTRING(@Command, @PosStart, @PosEnd - @PosStart)

            --select

            --right(@Command, len(@Command) - charindex('Initial Catalog=',@Command ,1)+1) DBIndexPos,
            --charindex(';',right(@Command, len(@Command) - charindex('Initial Catalog=',@Command ,1)+1),1) SemiColonPos,
            SET @DBNAMETEMP = 
            replace(left(right(@Command, len(@Command) - charindex('Initial Catalog=',@Command ,1)+1), charindex(';',right(@Command, len(@Command) - charindex('Initial Catalog=',@Command ,1)+1),1)-1),'Initial Catalog=','') --DatabaseName

            --PRINT @DBNAMETEMP 
            
            select 'exec msdb..sp_delete_jobstep @job_name = ''' + j.name + ''', @step_id = ' + convert(varchar(100), js.step_id)
            from msdb..sysjobs j
                inner join msdb..syscategories c
                    on c.category_id = j.category_id
                inner join msdb..sysjobsteps js
                    on js.job_id = j.job_id
                where @DBNAMETEMP not in (select name from sysdatabases)


            SET @SQLStatement= 'EXEC msdb.dbo.sp_delete_job @job_name =''' + @jobName + ''', @delete_unused_schedule=1' 
            PRINT(@SQLStatement)

            --select * from #dblist

                SET @COUNTER = @COUNTER + 1
        
        DELETE FROM #JobListTable WHERE JobName=@JobName

END
    DROP TABLE #JobListTable
    --DROP TABLE #dblist

标签： sqltsqlsql-delete

解决方案

我只需要从 msdb.dbo.sysjobs 和 msdb.dbo.sysjobsteps 获得的所有作业和作业步骤。然后我们可以简单地在 sys.databases 中检查作业数据库当前是否可用。请检查以下查询：

SELECT
     job.job_id,
     notify_level_email,
     name,
     enabled,
     description,
     step_name,
     command,
     server,
     database_name
FROM
    msdb.dbo.sysjobs job
INNER JOIN 
    msdb.dbo.sysjobsteps steps        
ON
    job.job_id = steps.job_id
    
WHERE database_name not in ( select name from sys.databases)

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