SQL SERVER 2005 Delete Maintenance job Error: The DELETE statement conflicted with the REFERENCE constraint "Fk_subplan_jo

Here are some of the information found online to solve this problem:
Get this job_id first:

USE [msdb]GO/****** Object:  Job [dbbackup_diff.Subplan_1]    Script Date: 04/08/2015 10:22:46 ******/@job_id=N‘588acfb8-630b-41c3-aa47-90d3671bda90‘@delete_unused_schedule=1GO

According to job_id to subplan_id:

select subplan_id FROM msdb.dbo.sysmaintplan_subplans where job_id=‘588acfb8-630b-41c3-aa47-90d3671bda90‘subplan_idFE56B397-4704-4AA7-BE49-767C1574E7D0

Remove subplan_id from system tables Msdb.dbo.sysmaintplan_log and Msdb.dbo.sysmaintplan_subplans respectively as ' Fe56b397-4704-4aa7-be49-767c1574e7d0 ' 's record:

delete from msdb.dbo.sysmaintplan_log where subplan_id=‘FE56B397-4704-4AA7-BE49-767C1574E7D0‘

delete FROM msdb.dbo.sysmaintplan_subplans WHERE SUBPLAN_ID=‘FE56B397-4704-4AA7-BE49-767C1574E7D0‘

Back to the graphical interface and then delete the job will not be an error.

Reference:
Http://www.cnblogs.com/kerrycode/p/3852231.html

SQL SERVER 2005 Delete Maintenance job Error: The DELETE statement conflicted with the REFERENCE constraint "Fk_subplan_jo