我正在使用实体框架5连接到SQL Server 2008.我已经将存储过程导入到我的项目中,没有任何问题。直到我在LINQ中使用.GroupBy().First()
切换到在存储过程中使用OUTER APPLY
获得唯一结果以获得唯一结果时,存储过程在过去一直执行完全没有问题。EntityCommandExecutionException仅超时过期
我改用LINQ中的.GroupBy()
在SQL Server上使用OUTER APPLY
,因为当然SQL更快。
这里是我的SQL:
@USERID VARCHAR(MAX) = NULL,
@ITEMTYPE VARCHAR(MAX) = NULL,
@ITEMSUBTYPE VARCHAR(MAX) = NULL,
@ITEMGROUP VARCHAR(MAX) = NULL,
@ITEMNO VARCHAR(MAX) = NULL
SELECT distinct orderformdump.itemno,
case when @userid = '' then NULL else CAST((SELECT top 1 [UNITPRICE] FROM [ICPRICP] WHERE [ITEMNO] = ICITEM.ITEMNO AND [PRICELIST] in (select priclist from ARCUS where IDCUST in (select CUSTID from WEBLOGINACCESS where [USER] = @USERID)) and [CURRENCY] = 'CDN' and DPRICETYPE = 1) AS DECIMAL(18,2)) end as price,
isnull(deals.isindeal, CAST(0 AS BIT)) isindeal
FROM ORDERFORMDUMP
INNER JOIN ICITEM ON ICITEM.FMTITEMNO = orderformdump.itemno
outer apply
(
select top 1 CAST(1 AS BIT) as isindeal
from PRD2 INNER JOIN PRH on PRD2.CODE = PRH.CODE
where ICITEM.ITEMNO = PRD2.ITEMNO and PRH.ACTIVE = 1
and cast(GETDATE() as DATE) between PRH.STARTDATE and isnull(PRH.ENDDATE, cast(GETDATE() as DATE))
) deals
where
(@ITEMNO IS NULL or ICITEM.FMTITEMNO = @ITEMNO)
and
(@ITEMSUBTYPE is null or ORDERFORMITEMSUBTYPEDUMP.ITEMSUBTYPE = @ITEMSUBTYPE)
and
(@ITEMTYPE is null or ORDERFORMITEMTYPEDUMP.ITEMTYPE = @ITEMTYPE)
and
(@ITEMGROUP is null or ORDERFORMITEMGROUPDUMP.ITEMGROUP = @ITEMGROUP)
之前,而不是OUTER APPLY
的我有两个LEFT JOIN
S和isindeal
柱是CASE
语句中:
...
case when PRH.ACTIVE = 1 and PRH.STARTDATE < cast(GETDATE() as DATE) and (PRH.ENDDATE IS NULL OR PRH.ENDDATE >= cast(GETDATE() as DATE)) then CAST(1 AS BIT) ELSE CAST(0 AS BIT) END as isindeal
...
LEFT JOIN PRD2 on ICITEM.ITEMNO = PRD2.ITEMNO
LEFT JOIN PRH on PRD2.CODE = PRH.CODE
...
下面是实体导入的类框架:
public partial class PRODUCTS_Result
{
public string itemno { get; set; }
public Nullable<decimal> price { get; set; }
public bool isindeal { get; set; }
}
这是存储过程是如何调用:
db.PRODUCTS(userid, itemtype, itemsubtype, itemgroup, itemno)
这是它是如何被调用之前:
db.PRODUCTS(userid, itemtype, itemsubtype, itemgroup, itemno).GroupBy(i => i.itemno).Select(x => x.First());
奇怪的是,超时只发生在存储过程中被调用的所有空PARAMATERS (恩。 db.PRODUCTS(null, null, null, null, null)
)
我尝试将超时设置为5分钟而不是默认的30秒,但是它只运行整个5分钟并仍然超时。
存储过程在3-5秒内完成SQL Server中的执行,参数的所有NULL值,我检查了所有的数据类型,并匹配,所以我不知道为什么我得到这个超时错误只是有时。