小编Gry*_*nix的帖子

运行 SQL Server 2008；Mgmt Studio 2008。我正在处理我们为 MS CRM 4.0 实施创建的 MS SQL 作业。对于熟悉 CRM 的任何人来说，这项工作每晚清除 aSyncOperationBase 表以节省数据库大小。这是工作代码：

    Begin Transaction T1

Declare @p30Days as DateTime
Declare @p3Years as DateTime

Set @p30Days = DateAdd(d, -30, GetDate())
Set @p3Years = DateAdd(d, -1095, GetDate())

update AsyncOperationBase 
set deletionstatecode=2    
where deletionstatecode = 0 and 
statecode = 3 and 
completedon is not null and 
completedon < @p30Days   
and OperationType <> 10

update AsyncOperationBase 
set deletionstatecode=2    
where deletionstatecode = 0 and 
statecode = 3 and 
completedon is …