SQL Server创建Job， 实现执行相同脚本而产生不同作业计划的探究

USE [msdb]
GO
DECLARE @jobId BINARY(16)
EXEC  msdb.dbo.sp_add_job @job_name=N‘DBA_TestJob_Schedule‘, 
        @enabled=1, 
        @notify_level_eventlog=0, 
        @notify_level_email=2, 
        @notify_level_netsend=2, 
        @notify_level_page=2, 
        @delete_level=0, 
        @description=N‘此为测试案例，无实际意义‘, 
        @category_name=N‘[Uncategorized (Local)]‘, 
        @owner_login_name=N‘sa‘, @job_id = @jobId OUTPUT
select @jobId
GO
EXEC msdb.dbo.sp_add_jobserver @job_name=N‘DBA_TestJob_Schedule‘, @server_name = N‘XXXXXXXXXX‘
GO
USE [msdb]
GO
EXEC msdb.dbo.sp_add_jobstep @job_name=N‘DBA_TestJob_Schedule‘, @step_name=N‘Step1‘, 
        @step_id=1, 
        @cmdexec_success_code=0, 
        @on_success_action=1, 
        @on_fail_action=2, 
        @retry_attempts=0, 
        @retry_interval=0, 
        @os_run_priority=0, @subsystem=N‘TSQL‘, 
        @command=N‘exec USP_TestForDBA_TestJOBSchedule‘, 
        @database_name=N‘master‘, 
        @flags=0
GO
USE [msdb]
GO
EXEC msdb.dbo.sp_update_job @job_name=N‘DBA_TestJob_Schedule‘, 
        @enabled=1, 
        @start_step_id=1, 
        @notify_level_eventlog=0, 
        @notify_level_email=2, 
        @notify_level_netsend=2, 
        @notify_level_page=2, 
        @delete_level=0, 
        @description=N‘此为测试案例，无实际意义‘, 
        @category_name=N‘[Uncategorized (Local)]‘, 
        @owner_login_name=N‘sa‘, 
        @notify_email_operator_name=N‘‘, 
        @notify_netsend_operator_name=N‘‘, 
        @notify_page_operator_name=N‘‘
GO
USE [msdb]
GO
DECLARE @schedule_id int
EXEC msdb.dbo.sp_add_jobschedule @job_name=N‘DBA_TestJob_Schedule‘, @name=N‘Schedule1‘, 
        @enabled=1, 
        @freq_type=4, 
        @freq_interval=1, 
        @freq_subday_type=4, 
        @freq_subday_interval=5, 
        @freq_relative_interval=0, 
        @freq_recurrence_factor=1, 
        @active_start_date=20181201, 
        @active_end_date=99991231, 
        @active_start_time=0, 
        @active_end_time=235959, @schedule_id = @schedule_id OUTPUT
select @schedule_id
GO

USE [msdb]
GO
DECLARE @schedule_id int
------------------------------- start -- Job schedule 开始时间在指定范围内随机产生 20181015 Carson Xu-----------------
Declare @Randstart_time int ----分布式数据库Job 开始时间指定范围随机产出，减少并发等待
select @Randstart_time=cast( floor(rand()*5) as int) * 100 +cast( floor(rand()*60) as int)--5 代表5分钟内的随机数，60 代表60 秒内随机数。
---将参数随机值 赋予 存储中的 sp_add_jobschedule 的@active_start_time就OK了。即代码中的@active_start_time=@Randstart_time.
---active_start_time 的数据类型为 int，无默认值。时间格式为 HHMMSS，采用 24 小时制。
---cast( floor(rand()*5) as int) * 100 +cast( floor(rand()*60) as int) 其实默认了开始时间（小时是00开始），完整应该是0*100000+cast( floor(rand()*5) as int) * 100 +cast( floor(rand()*60) as int)
---如果是8点就应该是8*100000+cast( floor(rand()*5) as int) * 100 +cast( floor(rand()*60) as int)
--------------------------------end ----------------------------------------------------------
EXEC msdb.dbo.sp_add_jobschedule @job_name=N‘DBA_TestJob_Schedule‘, @name=N‘Schedule1‘, 
        @enabled=1, 
        @freq_type=4, 
        @freq_interval=1, 
        @freq_subday_type=4, 
        @freq_subday_interval=5, 
        @freq_relative_interval=0, 
        @freq_recurrence_factor=1, 
        @active_start_date=20181201, 
        @active_end_date=99991231, 
        @active_start_time=@Randstart_time, 
        @active_end_time=235959, @schedule_id = @schedule_id OUTPUT
select @schedule_id
GO