如何抓取最大的tmstmp

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alter procedure dba.GetMaxTMstmp
@tbname nvarchar(100)
as


declare @Max_TMstmp bigint
declare @sql nvarchar(4000)
declare @sql2 nvarchar(4000)
declare @i int=0
--set @tbname='bond'
--print @tbname
begin
--print @tbname
set @sql2='select @i=count(1) from sys.columns col join sys.tables tbl on col.object_id=tbl.object_id where tbl.name='+''''+@tbname+''''+' and col.name='+''''+'TMSTAMP'+''''
exec sp_executesql @sql2 ,N'@i int out' ,@i out
--print @i
if isnull(@i,0)<>0
begin
set @sql= 'insert into [DBCenter].[dbo].[viewMaxTMtamp] ([table_name],[max_tmstamp]) select '+''''+@tbname+''''+', isnull(cast(max(TMSTAMP) as bigint),0) from '+@tbname
--print @sql
EXEC (@sql)
end
end
go

==========================================================================================
create procedure dba.GetMaxTMstmp_job
as
declare @tblname varchar(100)
declare mycursor cursor for select top 10 name from sys.tables where type='U' order by name
--打开游标
open mycursor
--从游标里取出数据赋值到我们刚才声明的2个变量中
fetch next from mycursor into @tblname


--判断游标的状态
-- 0 fetch语句成功
---1 fetch语句失败或此行不在结果集中
---2 被提取的行不存在
while (@@fetch_status=0)
begin
print @tblname
exec dba.GetMaxTMstmp @tblname
fetch next from mycursor into @tblname
end
--关闭游标
close mycursor
--撤销游标
DEALLOCATE mycursor

==================================================================================================
USE [msdb]
GO
DECLARE @jobId BINARY(16)
EXEC msdb.dbo.sp_add_job @job_name=N'dba.GetMaxTMstmp_job',
@enabled=1,
@notify_level_eventlog=0,
@notify_level_email=2,
@notify_level_netsend=2,
@notify_level_page=2,
@delete_level=0,
@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.GetMaxTMstmp_job', @server_name = N'SH-DATAYESDB'
GO
USE [msdb]
GO
EXEC msdb.dbo.sp_add_jobstep @job_name=N'dba.GetMaxTMstmp_job', @step_name=N'dba.GetMaxTMstmp_job_daily',
@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'dba.GetMaxTMstmp_job',
@database_name=N'datayesdb',
@flags=0
GO
USE [msdb]
GO
EXEC msdb.dbo.sp_update_job @job_name=N'dba.GetMaxTMstmp_job',
@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'',
@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_id=N'd61c0c64-31bc-4e1c-98e7-140b345f0f48', @name=N'GetMaxTMstmp_job_daily',
@enabled=1,
@freq_type=4,
@freq_interval=1,
@freq_subday_type=1,
@freq_subday_interval=0,
@freq_relative_interval=0,
@freq_recurrence_factor=1,
@active_start_date=20170412,
@active_end_date=99991231,
@active_start_time=0,
@active_end_time=235959, @schedule_id = @schedule_id OUTPUT
select @schedule_id
GO

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