Sql Select Query Timeout

Question

你好人我正在查詢和工作正常，除了當我運行一個查詢超過2-3次這個返回超時是有問題在我的查詢或這是服務器錯誤友好建議我在這裏是我的查詢

SELECT 
    Category_Feature_Mapping.Feature_ID, 
    Category_Feature_Mapping.Category_ID, 
    Option_Table.Option_ID, 
    Option_Table.Title, 
    Feature_Table.Title AS featuretitle, 
    Feature_Table.Type 
FROM 
    Category_Feature_Mapping 
    INNER JOIN Feature_Table 
     ON Category_Feature_Mapping.Feature_ID = Feature_Table.Feature_ID 
    INNER JOIN Option_Table 
     ON Feature_Table.Feature_ID = Option_Table.Feature_ID 
WHERE 
    Category_Feature_Mapping.Category_ID = @catid 
    AND Feature_Table.Feature_ID=@feid 
    AND Feature_Table.Feature_ID not in (SELECT 
              Feature_ID 
             FROM 
              Vendor_Value_Table 
             WHERE 
              Vendor_ID=@venid)      
GROUP BY 
    Category_Feature_Mapping.Feature_ID, 
    Category_Feature_Mapping.Category_ID, 
    Option_Table.Option_ID, 
    Option_Table.Title, 
    Feature_Table.Title, 
    Feature_Table.Type 

Answer 1

嘗試添加「連接超時= 100 「給你連接你的超時時間

Answer 2

可以通過性能的問題，試圖通過更換「不」，「不存在」這樣的

AND not exists (
SELECT * FROM Vendor_Value_Table vvt 
WHERE Feature_Table.Feature_ID =vvt.Feature_ID and vvt.Vendor_ID=@venid 
)