Question

我需要一个查询来查找没有获得“评级6”记录的检查/组件。我将插入新记录，以便所有检查/组件都有“评级6”记录以及他们可能拥有的其他评级。

请考虑以下数据：57646,57652和57657 不正确，因为他们缺少评级6记录。在此数据示例中，这三个应该是查询返回的唯一检查/组件。

InspectionID  ComponentID     RatingTypeID
138           57646           10
138           57647           6
138           57647           2
138           57648           6
138           57649           6
138           57650           6
138           57651           10
138           57651           6
138           57652           10
138           57653           6
138           57654           6
138           57655           6
138           57656           6
138           57657           10

Answer 1

SELECT *
FROM YourTable A
WHERE NOT EXISTS(SELECT 1 FROM YourTable
                 WHERE InspectionID = A.InspectionID  
                 AND ComponentID = A.ComponentID
                 AND RatingTypeID = 6)

Answer 2

SELECT A.InspectionID FROM MyTable AS A
LEFT OUTER JOIN MyTable AS B
ON A.InspectionID = B.InspectionID AND B.RatingTypeID = 6
WHERE B.InspectionID IS NULL

Answer 3

这应该只需一次就能完成。

SELECT  src.*
FROM
(
    SELECT  x.InspectionID, 
            x.ComponentID,
            MAX(CASE WHEN x.RatingTypeID = 6 THEN 1 ELSE 0 END) AS HasRatingTypeID6
    FROM    dbo.MyTable x
    GROUP BY x.InspectionID, x.ComponentID
) src
WHERE src.HasRatingTypeID6 = 1

Answer 4

select * from YOURTABLE where componentId not in (select componentId from YOURTABLE where RatingTypeId=6)

TSQL：查找所需的缺失记录

4 个答案: