用于搜刮具有无穷数目的位字段的表的SQL计划要领

样本搜刮查询：

;WITH GetMatchingAttributes AS
(
SELECT
    ApartmentID,COUNT(AttributeID) AS CountOfMatches
    FROM #Attributes
    WHERE AttributeType IN (1,2,3)  --<<change dynamically or split a CSV string and join in
    GROUP BY ApartmentID
    HAVING COUNT(AttributeID)=3--<<change dynamically or split a CSV string and use COUNT(*) from resulting table
)
SELECT
    a.*
    FROM #Apartments                      a
        INNER JOIN GetMatchingAttributes m ON a.ApartmentID=m.ApartmentID
    WHERE a.Status='A'
    ORDER BY m.CountOfMatches DESC

OUTPUT：

ApartmentID ApartmentName 
----------- --------------
1           one           
2           two           

(2 row(s) affected)

（编辑：湖南网）

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