Question

FUNDFAMILY_ID    FUND_NAME                REPORTSECTION_ID           
--------------------------------------------------------------
172295295    VANGUARD GROWTH FUND (Retail)  126345
172295295    VANGUARD GROWTH FUND (Retail)  126354
--------------------------------------------------------------

但我需要得到如下结果：

FUNDFAMILY_ID     FUND_NAME                   REPORTSECTION_ID
--------------------------------------------------------------
172295295   VANGUARD GROWTH FUND (Retail)   126345

在存储过程中，我有一个如下所示的查询，它提供了重复的行

    INSERT INTO #TABLE_REPORTSECTIONDATA (FUND_NAME, FUNDFAMILY_ID, REPORTSECTION_ID)

                SELECT DISTINCT @FUNDNAME_TEMP , @FUNDID_TEMP, EntryPointViewsId
                FROM EntryPointViews EPV
                ORDER BY EntryPointViewsId

DISTINCT关键字没有给我正确的结果。请建议

Answer 1

DISTINCT正在为您提供正确的结果，记录与您指定的所有列截然不同。你想要什么呢？根据ID和描述只是唯一的？哪个AnotherID想要从每个小组中获取？

如果您只是想要一个任意的话，可以MIN使用MAX或GROUP BY：

SELECT ID, Description, MIN(AnotherID)
FROM EntryPointViews EPV
GROUP BY ID, Description

Answer 2

我认为您正在寻找ROW_NUMBER()分区，此查询应该适合您：

SELECT FUNDFAMILY_ID, FUND_NAME, REPORTSECTION_ID
FROM (
    SELECT ROW_NUMBER() OVER (PARTITION BY FUNDFAMILY_ID ORDER BY REPORTSECTION_ID) AS RN, FUNDFAMILY_ID, FUND_NAME, REPORTSECTION_ID, EntryPointViewsId
    FROM EntryPointViews EPV
    ) AS T
WHERE RN = 1
ORDER BY EntryPointViewsId;

如何在sqlserver中获取不同的记录

2 个答案: