종종 매우 느린 상당히 복잡한 LINQ 쿼리가 있는데 System.Data.SqlClient.SqlException
: "대기 작업 시간 초과"가 발생합니다. 그러나LINQ 쿼리가 느려지고 시간 초과가 발생합니다. 생성 된 SQL은 괜찮습니까?
, I는 상기 생성 된 SQL 로그 때 괜찮 (에 TextWriter
할당하여 DataContext
의 Log
)과 직접 SQL 서버에서이 약 4 초 완료 수행.
불일치는 어디서 발생했으며 어떻게 디버깅합니까?
편집 : SQL Server Management Studio의 활동 모니터에서 .NET에서 쿼리가 실행될 때 프로세서 시간이 100 %로 증가했지만 생성 된 SQL 쿼리를 실행할 때 3 % 정도만 나타났습니다.
내 코드를 게시하는 것이 도움이 될 것입니다 방법을 잘 모르겠지만,이 요청 된 이후, 여기에 쿼리를 포함하는 코드입니다
var Db = MyProject.GetDataContext();
var statusPaymentSuccess = new string[] { "SUCCESS", "REMBOURS", "AFTERPAY" };
var items = Db.Orders.Where(item =>
(siteid == null || item.SiteId == siteid) &&
(ls_list.Contains(item.OrderOrderLifeCycles.OrderByDescending(it => it.Id).First().OrderLifeCycleId)) &&
(item.OrderOrderPaymentStatus.Any(ops => statusPaymentSuccess.Contains(ops.OrderPaymentStatus.Code)) &&
(CycleID == null || item.OrderOrderLifeCycles.First().OrderLifeCycleId == CycleID) &&
(LocationID == null || item.SaleLocationId == LocationID) &&
(string.IsNullOrEmpty(SalesPerson) || item.EmployeeName.ToLower() == SalesPerson.ToLower()))
);
var betweenorders = items.Select(it => new OrderBetween()
{
FirstPayDate = it.OrderOrderPaymentStatus.FirstOrDefault(ops => statusPaymentSuccess.Contains(ops.OrderPaymentStatus.Code)).DateTime,
OrderTotal = it.TotalAmount,
VatTotal = it.OrderItems.Sum(it2 => it2.BTWAmount ?? 0),
Quantity = it.OrderItems.Count,
SiteId = it.SiteId
});
return betweenorders.Where(item => item.FirstPayDate >= start && item.FirstPayDate < stop)
.GroupBy(item => item.FirstPayDate.Value.Year + "-" + item.FirstPayDate.Value.Month).Select(
item =>
new SaleTotal()
{
Count = item.Sum(sub => sub.Quantity),
Month = item.FirstOrDefault().FirstPayDate.Value.Year + "-" + item.FirstOrDefault().FirstPayDate.Value.Month.ToString().PadLeft(2, '0'),
Total = item.Sum(sub => sub.OrderTotal),
VAT = item.Sum(sub => sub.VatTotal)
}).OrderBy(item => item.Month).ToArray();
곳 ls_list
이 OrderOrderLifeCycles
ID를 포함하는 List<int>
이다.
로그에서 가져온으로 생성 된 SQL 쿼리 : 쿼리를 개선하기 위해
DECLARE @p0 NVarChar(4000) = 'SUCCESS'
DECLARE @p1 NVarChar(4000) = 'REMBOURS'
DECLARE @p2 NVarChar(4000) = 'AFTERPAY'
DECLARE @p3 Decimal(31,2) = '0'
DECLARE @p4 NVarChar(4000) = '-'
DECLARE @p5 DateTime = '2016-06-01'
DECLARE @p6 DateTime = '2016-09-01'
DECLARE @p7 Int = '4'
DECLARE @p8 Int = '5'
DECLARE @p9 Int = '8'
DECLARE @p10 NVarChar(4000) = 'SUCCESS'
DECLARE @p11 NVarChar(4000) = 'REMBOURS'
DECLARE @p12 NVarChar(4000) = 'AFTERPAY'
DECLARE @p13 NVarChar(4000) = '-'
DECLARE @p14 NVarChar(4000) = '-'
DECLARE @p15 Int = '2'
DECLARE @p16 NChar(1) = '0'
SELECT [t64].[value] AS [Month], [t64].[value2] AS [Count], [t64].[value22] AS [Total], [t64].[value3] AS [VAT]
FROM (
SELECT ((CONVERT(NVarChar,DATEPART(Year, (
SELECT [t23].[value]
FROM (
SELECT TOP (1) [t18].[value]
FROM (
SELECT (
SELECT [t17].[DateTime]
FROM (
SELECT TOP (1) [t15].[DateTime]
FROM [dbo].[OrderOrderPaymentStatus] AS [t15]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t16] ON [t16].[Id] = [t15].[OrderPaymentStatusId]
WHERE ([t16].[Code] IN (@p0, @p1, @p2)) AND ([t15].[OrderId] = [t14].[Id])
) AS [t17]
) AS [value], [t14].[Id]
FROM [dbo].[Order] AS [t14]
) AS [t18]
WHERE ((([t13].[value4] IS NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t18].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t18].[value])))) IS NULL)) OR (([t13].[value4] IS NOT NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t18].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t18].[value])))) IS NOT NULL) AND ([t13].[value4] = (((CONVERT(NVarChar,DATEPART(Year, [t18].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t18].[value]))))))) AND ([t18].[value] >= @p5) AND ([t18].[value] < @p6) AND (((
SELECT [t20].[OrderLifeCycleId]
FROM (
SELECT TOP (1) [t19].[OrderLifeCycleId]
FROM [dbo].[OrderOrderLifeCycle] AS [t19]
WHERE [t19].[OrderId] = [t18].[Id]
ORDER BY [t19].[Id] DESC
) AS [t20]
)) IN (@p7, @p8, @p9)) AND (EXISTS(
SELECT NULL AS [EMPTY]
FROM [dbo].[OrderOrderPaymentStatus] AS [t21]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t22] ON [t22].[Id] = [t21].[OrderPaymentStatusId]
WHERE ([t22].[Code] IN (@p10, @p11, @p12)) AND ([t21].[OrderId] = [t18].[Id])
))
) AS [t23]
)))) + @p14) + (
(CASE
WHEN (CONVERT(Int,DATALENGTH(CONVERT(NVarChar,DATEPART(Month, (
SELECT [t63].[value]
FROM (
SELECT TOP (1) [t58].[value]
FROM (
SELECT (
SELECT [t57].[DateTime]
FROM (
SELECT TOP (1) [t55].[DateTime]
FROM [dbo].[OrderOrderPaymentStatus] AS [t55]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t56] ON [t56].[Id] = [t55].[OrderPaymentStatusId]
WHERE ([t56].[Code] IN (@p0, @p1, @p2)) AND ([t55].[OrderId] = [t54].[Id])
) AS [t57]
) AS [value], [t54].[Id]
FROM [dbo].[Order] AS [t54]
) AS [t58]
WHERE ((([t13].[value4] IS NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value])))) IS NULL)) OR (([t13].[value4] IS NOT NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value])))) IS NOT NULL) AND ([t13].[value4] = (((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value]))))))) AND ([t58].[value] >= @p5) AND ([t58].[value] < @p6) AND (((
SELECT [t60].[OrderLifeCycleId]
FROM (
SELECT TOP (1) [t59].[OrderLifeCycleId]
FROM [dbo].[OrderOrderLifeCycle] AS [t59]
WHERE [t59].[OrderId] = [t58].[Id]
ORDER BY [t59].[Id] DESC
) AS [t60]
)) IN (@p7, @p8, @p9)) AND (EXISTS(
SELECT NULL AS [EMPTY]
FROM [dbo].[OrderOrderPaymentStatus] AS [t61]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t62] ON [t62].[Id] = [t61].[OrderPaymentStatusId]
WHERE ([t62].[Code] IN (@p10, @p11, @p12)) AND ([t61].[OrderId] = [t58].[Id])
))
) AS [t63]
))))/2)) >= @p15 THEN CONVERT(NVarChar,DATEPART(Month, (
SELECT [t63].[value]
FROM (
SELECT TOP (1) [t58].[value]
FROM (
SELECT (
SELECT [t57].[DateTime]
FROM (
SELECT TOP (1) [t55].[DateTime]
FROM [dbo].[OrderOrderPaymentStatus] AS [t55]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t56] ON [t56].[Id] = [t55].[OrderPaymentStatusId]
WHERE ([t56].[Code] IN (@p0, @p1, @p2)) AND ([t55].[OrderId] = [t54].[Id])
) AS [t57]
) AS [value], [t54].[Id]
FROM [dbo].[Order] AS [t54]
) AS [t58]
WHERE ((([t13].[value4] IS NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value])))) IS NULL)) OR (([t13].[value4] IS NOT NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value])))) IS NOT NULL) AND ([t13].[value4] = (((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value]))))))) AND ([t58].[value] >= @p5) AND ([t58].[value] < @p6) AND (((
SELECT [t60].[OrderLifeCycleId]
FROM (
SELECT TOP (1) [t59].[OrderLifeCycleId]
FROM [dbo].[OrderOrderLifeCycle] AS [t59]
WHERE [t59].[OrderId] = [t58].[Id]
ORDER BY [t59].[Id] DESC
) AS [t60]
)) IN (@p7, @p8, @p9)) AND (EXISTS(
SELECT NULL AS [EMPTY]
FROM [dbo].[OrderOrderPaymentStatus] AS [t61]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t62] ON [t62].[Id] = [t61].[OrderPaymentStatusId]
WHERE ([t62].[Code] IN (@p10, @p11, @p12)) AND ([t61].[OrderId] = [t58].[Id])
))
) AS [t63]
)))
ELSE REPLICATE(@p16, @p15 - (CONVERT(Int,DATALENGTH(CONVERT(NVarChar,DATEPART(Month, (
SELECT [t63].[value]
FROM (
SELECT TOP (1) [t58].[value]
FROM (
SELECT (
SELECT [t57].[DateTime]
FROM (
SELECT TOP (1) [t55].[DateTime]
FROM [dbo].[OrderOrderPaymentStatus] AS [t55]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t56] ON [t56].[Id] = [t55].[OrderPaymentStatusId]
WHERE ([t56].[Code] IN (@p0, @p1, @p2)) AND ([t55].[OrderId] = [t54].[Id])
) AS [t57]
) AS [value], [t54].[Id]
FROM [dbo].[Order] AS [t54]
) AS [t58]
WHERE ((([t13].[value4] IS NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value])))) IS NULL)) OR (([t13].[value4] IS NOT NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value])))) IS NOT NULL) AND ([t13].[value4] = (((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value]))))))) AND ([t58].[value] >= @p5) AND ([t58].[value] < @p6) AND (((
SELECT [t60].[OrderLifeCycleId]
FROM (
SELECT TOP (1) [t59].[OrderLifeCycleId]
FROM [dbo].[OrderOrderLifeCycle] AS [t59]
WHERE [t59].[OrderId] = [t58].[Id]
ORDER BY [t59].[Id] DESC
) AS [t60]
)) IN (@p7, @p8, @p9)) AND (EXISTS(
SELECT NULL AS [EMPTY]
FROM [dbo].[OrderOrderPaymentStatus] AS [t61]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t62] ON [t62].[Id] = [t61].[OrderPaymentStatusId]
WHERE ([t62].[Code] IN (@p10, @p11, @p12)) AND ([t61].[OrderId] = [t58].[Id])
))
) AS [t63]
))))/2))) + (CONVERT(NVarChar,DATEPART(Month, (
SELECT [t63].[value]
FROM (
SELECT TOP (1) [t58].[value]
FROM (
SELECT (
SELECT [t57].[DateTime]
FROM (
SELECT TOP (1) [t55].[DateTime]
FROM [dbo].[OrderOrderPaymentStatus] AS [t55]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t56] ON [t56].[Id] = [t55].[OrderPaymentStatusId]
WHERE ([t56].[Code] IN (@p0, @p1, @p2)) AND ([t55].[OrderId] = [t54].[Id])
) AS [t57]
) AS [value], [t54].[Id]
FROM [dbo].[Order] AS [t54]
) AS [t58]
WHERE ((([t13].[value4] IS NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value])))) IS NULL)) OR (([t13].[value4] IS NOT NULL) AND ((((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value])))) IS NOT NULL) AND ([t13].[value4] = (((CONVERT(NVarChar,DATEPART(Year, [t58].[value]))) + @p13) + (CONVERT(NVarChar,DATEPART(Month, [t58].[value]))))))) AND ([t58].[value] >= @p5) AND ([t58].[value] < @p6) AND (((
SELECT [t60].[OrderLifeCycleId]
FROM (
SELECT TOP (1) [t59].[OrderLifeCycleId]
FROM [dbo].[OrderOrderLifeCycle] AS [t59]
WHERE [t59].[OrderId] = [t58].[Id]
ORDER BY [t59].[Id] DESC
) AS [t60]
)) IN (@p7, @p8, @p9)) AND (EXISTS(
SELECT NULL AS [EMPTY]
FROM [dbo].[OrderOrderPaymentStatus] AS [t61]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t62] ON [t62].[Id] = [t61].[OrderPaymentStatusId]
WHERE ([t62].[Code] IN (@p10, @p11, @p12)) AND ([t61].[OrderId] = [t58].[Id])
))
) AS [t63]
))))
END)) AS [value], [t13].[value] AS [value2], [t13].[value2] AS [value22], [t13].[value3]
FROM (
SELECT SUM([t8].[value3]) AS [value], SUM([t8].[TotalAmount]) AS [value2], SUM([t8].[value22]) AS [value3], [t8].[value] AS [value4]
FROM (
SELECT ((CONVERT(NVarChar,DATEPART(Year, [t7].[value]))) + @p4) + (CONVERT(NVarChar,DATEPART(Month, [t7].[value]))) AS [value], [t7].[value] AS [value2], [t7].[Id], [t7].[value3], [t7].[TotalAmount], [t7].[value2] AS [value22]
FROM (
SELECT (
SELECT [t3].[DateTime]
FROM (
SELECT TOP (1) [t1].[DateTime]
FROM [dbo].[OrderOrderPaymentStatus] AS [t1]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t2] ON [t2].[Id] = [t1].[OrderPaymentStatusId]
WHERE ([t2].[Code] IN (@p0, @p1, @p2)) AND ([t1].[OrderId] = [t0].[Id])
) AS [t3]
) AS [value], [t0].[TotalAmount], (
SELECT SUM([t5].[value])
FROM (
SELECT COALESCE([t4].[BTWAmount],@p3) AS [value], [t4].[OrderId]
FROM [dbo].[OrderItem] AS [t4]
) AS [t5]
WHERE [t5].[OrderId] = [t0].[Id]
) AS [value2], (
SELECT COUNT(*)
FROM [dbo].[OrderItem] AS [t6]
WHERE [t6].[OrderId] = [t0].[Id]
) AS [value3], [t0].[Id]
FROM [dbo].[Order] AS [t0]
) AS [t7]
) AS [t8]
WHERE ([t8].[value2] >= @p5) AND ([t8].[value2] < @p6) AND (((
SELECT [t10].[OrderLifeCycleId]
FROM (
SELECT TOP (1) [t9].[OrderLifeCycleId]
FROM [dbo].[OrderOrderLifeCycle] AS [t9]
WHERE [t9].[OrderId] = [t8].[Id]
ORDER BY [t9].[Id] DESC
) AS [t10]
)) IN (@p7, @p8, @p9)) AND (EXISTS(
SELECT NULL AS [EMPTY]
FROM [dbo].[OrderOrderPaymentStatus] AS [t11]
INNER JOIN [dbo].[OrderPaymentStatus] AS [t12] ON [t12].[Id] = [t11].[OrderPaymentStatusId]
WHERE ([t12].[Code] IN (@p10, @p11, @p12)) AND ([t11].[OrderId] = [t8].[Id])
))
GROUP BY [t8].[value]
) AS [t13]
) AS [t64]
ORDER BY [t64].[value]
얼마나 많은 행 쿼리 반환합니까? 서버가 네트워크에 있습니까? 아니면 로컬 서버입니까? – user3185569
@Preotector - 필자는 쿼리를 추가하여 성능을 저하시킬 수있는 사항을 파악할 수 있도록하는 것이 바람직하다고 생각합니다 (그리고 linq을 사용하기로 결정한 것이 아니라 DB와 상호 작용하는 방식으로 인해 결정했기 때문에) –
SQL 프로파일 러를 사용하여 실행 계획을 비교해보십시오. 먼저 linq 명령을 실행하고 실행 계획을 확인한 다음 SSMS에서 쿼리를 실행하고 실행 계획을 확인하십시오. 실행 컨텍스트에 따라 다른 몇 가지가 있습니다. ARTHABORT ON/OFF는 그 중 하나입니다. 그러나 쿼리를 보지 않고도 쿼리가 그걸로 무엇을해야하는지 확신 할 수 없습니다.)하지만 실행 계획을 비교하면 상황이 어디 있는지 알 수 있습니다. slow – Nirman