6

我的问题是在 exec 中使用表变量。

declare @sort_col nvarchar(1000) = 'itm_id'
declare @sort_dir nvarchar(4) = 'desc'
declare @filters nvarchar(1000) = ' and itm_name like ''%aa%'''

declare @temp table
(
 itm_id int
)

insert into @temp
EXEC('select itm_id from Tblitm where itm_name not like ''%aa%''')

EXEC('select * from (select (ROW_NUMBER() OVER (ORDER BY '+@sort_col+' '+@sort_dir+')) row_num, * FROM (select itm_id, itm_name, 
dbo.fnItmsHistory(itm_id) itm_history
         from dbo.Tblitm as itm
         left outer join '+@temp+' as temp on itm.itm_id = temp.itm_id
         where itm_id=itm_id and temp.itm_id = null '+@filters+') as x) as tmp')

它说必须在声明临时表时声明标量变量“@temp”我尝试使用原始临时表并且它有效，但是我在尝试更新我的实体模型时遇到了问题。那么这个问题有什么解决方案吗？

注意：我必须使用 exec 因为在过滤器中我为 where 子句存储字符串。

4

2 回答 2

1

尝试在动态语句中移动表变量。

EXEC('
declare @temp table
(
 itm_id int
)
insert into @temp
select itm_id from Tblitm where itm_name not like ''%aa%''
select * from (select (ROW_NUMBER() OVER (ORDER BY '+@sort_col+' '+@sort_dir+')) row_num, * FROM (select itm_id, itm_name, 
dbo.fnItmsHistory(itm_id) itm_history
         from dbo.Tblitm as itm
         left outer join @temp as temp on itm.itm_id = temp.itm_id
         where itm_id=itm_id and temp.itm_id = null '+@filters+') as x) as tmp')
于 2013-05-20T16:39:19.110 回答
0

对于解决方案，我必须使用临时表，然后在我的存储过程开始时，我使用来自EF 的 if 条件无法从存储过程中推断返回模式，从 #temp 表anwser 中选择。

我认为这是这种情况的最佳解决方案。

于 2013-05-21T08:56:57.303 回答