public List<Agents_main_view_distinct> getActiveAgents(DateTime start, DateTime end)
{
myactiveagents = null;
myactiveagents = mydb.Agents_main_view_distincts.Where(u => u.Status.Equals("Existing") && u.DateJoined2 >=start && u.DateJoined2 <=end).OrderByDescending(ac => ac.Recno).ToList();
return myactiveagents;
}
我有一個簡單的LINQ查詢查詢視圖。我擔心它的性能。它適用於幾百條記錄,但是當記錄超過2000條時,SQL服務器超時。
我已經做過的改進性能的事情。
1.寫一個查詢直接查詢表(沒有改進)。
2.降低不經意的列,之前它有27列,減少到20.提高LINQ查詢性能
在絕望嘗試我增加了服務器時間到600.但仍然是超時。
任何幫助將不勝感激
查看SQL查詢
SELECT dbo.Agents.Recno, dbo.Agents.Rec_date, dbo.Agents.AgentsId, dbo.Agents.AgentsName, dbo.Agents.Industry_status, dbo.Agents.DOB, dbo.Agents.Branch,
dbo.Agents.MobileNumber, dbo.Agents.MaritalStatus, dbo.Agents.PIN, dbo.Agents.Gender, dbo.Agents.Email, dbo.Agents.ProvisionalLicense,
dbo.Agents.IRALicenseNumber, dbo.Agents.PreviousCompany, dbo.Agents.YearsOfExperience, dbo.Agents.COPNumber, dbo.Agents.DateJoined AS DateJoined2,
dbo.Agents.DateJoined, dbo.Agents.PreviousOccupation, dbo.Agents.ProffesionalQualification, dbo.Agents.EducationalQualification, dbo.Agents.Status,
dbo.Agents.Termination_Date2 AS Termination_Date, dbo.Agents.Comments, dbo.Agents.Temination_code, dbo.Agents.Company_ID, dbo.Agents.Submit_By,
dbo.Agents.PassportPhoto, dbo.Insurane_Companies.Company_name, DATEDIFF(year, dbo.Agents.DOB, GETDATE()) AS age, YEAR(dbo.Agents.DateJoined)
AS YearJoined, YEAR(dbo.Agents.Termination_Date2) AS YearTermination, dbo.Agents.REGION, dbo.Agents.DOB AS DOB2,
dbo.Insurane_Companies.Company_code
FROM dbo.Agents INNER JOIN
dbo.Insurane_Companies ON dbo.Agents.Company_ID = dbo.Insurane_Companies.Company_id
你考慮過索引你的數據庫嗎?另外,由於您從視圖中提取,因此您可以考慮優化視圖本身。 –
你可以發佈視圖本身的SQL代碼嗎? – lukiffer
您是否嘗試過使用存儲過程? – James