在sql查询中使用表变量

use [daf_db]
go
/****** object: storedprocedure [dbo].[prog_worktask_list] script date: 06/14/2010 21:14:43 ******/
set ansi_nulls on
go
set quoted_identifier on
go

--[prog_worktask_list] 62,0,'','',0,0,'',''

-- =============================================
-- author: guo.lin
-- create date: 2010-03-10
-- description: 获取工作任务单列表，根据相关条件
-- =============================================
alter procedure [dbo].[prog_worktask_list]
@userid varchar(10), ---当前用户
@status int, ---状态
@leader varchar(30),
@facilitators varchar(30),
@level int ,
@priority int,
@closedt varchar(30),
@createdby varchar(30)

as
begin
declare @result table(
taskid int,
taskname nvarchar(100),
tasktopic nvarchar(100),
level varchar(10),
priority varchar(10),
status varchar(10),
leader varchar(100),
strleader nvarchar(500),
facilitators varchar(100),
cycletime varchar(10),
closedt datetime,
createddt datetime,
createdby varchar(30)
)

insert into @result select taskid,taskname,tasktopic,level,priority,status,leader,strleader,facilitators,cycletime,closedt,createddt,createdby
from work_taskprocess where createdby=@createdby or leader like '%|'+@userid+'|%' or facilitators like '%|'+@userid+'|%'

if (@status <>0)
delete @result where status<>@status
if (@leader<>'')
delete @result where leader not like '%|'+@leader+'|%'
-- if (@createdby<>'')
-- delete @result where createdby<>@createdby
if (@level <> 0)
delete @result where level<>@level
if (@priority <> 0)
delete @result where priority<>@priority
if (@closedt<>'')
delete @result where closedt<>@closedt

update @result set status=b.itemtext from @result a,daf_item b where a.status=b.itemvalue and b.itemtype='worktaskstatus'
update @result set level=b.itemtext from @result a,daf_item b where a.level=b.itemvalue and b.itemtype='worktasklevel'
update @result set priority=b.itemtext from @result a,daf_item b where a.priority=b.itemvalue and b.itemtype='worktaskpriority'
update @result set createdby=b.username from @result a, daf_useraccount b where a.createdby=b.userid
update @result set cycletime=cycletime+'天'


select taskid,taskname,tasktopic,level,priority,status,strleader,facilitators,cycletime,closedt,createddt,createdby from @result order by createddt desc

end